{"title":"All Bottlehead Products","description":"\u003cp\u003eSee all Bottlehead's current amplifier, preamplifier, and mod kits, and check out our selection of merch and accessories.\u003c\/p\u003e","products":[{"product_id":"crack-1-1-otl-headphone-amplifier-kit","title":"Bottlehead Crack 1.1 OTL Headphone Amplifier Kit","description":"\u003cp class=\"p1\"\u003eThe Crack is a legendary OTL (output transformerless) headphone amplifier kit, purpose-built for high-impedance headphones like the Sennheiser HD600 and HD650, as well as AKGs and Beyerdynamics. Its single-ended triode design delivers rich midrange, spacious soundstage, and a uniquely engaging tube character. Designed with first-time builders in mind, the Crack offers a fun, rewarding build experience—and sonic performance that rivals amps several times its price. Add the Speedball to elevate your Crack’s dynamics, clarity, and resolution.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Crack uses a universal power transformer. International customers will need to supply their own power cord, but the kit can be wired for different voltages using instructions in our detailed manuals.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis product has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003einternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52093288382833,"sku":"HPK-CRACK-1-1","price":375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/Crack_Hero.jpg?v=1775342057"},{"product_id":"crackatwoa-headphone-amplifier","title":"Crackatwoa Headphone Amplifier Kit","description":"\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eCrackatwoa is a premium version of the direct coupled Crack circuit - it \u003c\/span\u003etakes everything you love about the original Crack and dials it up. With an upgraded power supply and the Speedball constant current source built in, it delivers greater dynamic impact, tighter bass, and improved resolution—while maintaining the OTL magic that made the original a classic. Perfect for high-impedance headphones (200 ohms or higher - think \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eSennheiser HD600\/650\/800, Beyerdynamic 250 and 600 ohms headphones, etc.)\u003c\/span\u003e and experienced builders seeking even more from their tube amp.\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBuilders beware: This kit is more difficult than the Crack. We're calling it a Level Three kit, which means that we encourage you to get a couple successful builds under your belt before taking this one on. It's worth it, though!\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52093288415601,"sku":"HPK-CRACKATWOA","price":965.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/crackatwoa-headphone-amplifier-kit-5644141.jpg?v=1754731609"},{"product_id":"s-e-x-3-0-c4s-upgrade-kit","title":"Bottlehead S.E.X. 3.0 C4S Upgrade Kit","description":"\u003cp\u003eThis easy-to-install kit that will give your current version 3.0 S.E.X. kit a more quiet background, better resolution and tighter bass. This kit is available for pre-January 2023 S.E.X. 3.0 kits. \u003cstrong\u003eAs of January 2023 this kit is included with the Basic S.E.X. 3.0 kit. \u003c\/strong\u003e\u003cstrong\u003eThis kit will not work with earlier S.E.X kits\u003c\/strong\u003e\u003cstrong\u003e.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52093290709361,"sku":"UP-SEX-3-0-C4S","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/sex-30-c4s-upgrade-kit-6992978.jpg?v=1752975602"},{"product_id":"speedball-1-1-upgrade-for-crack-amplifier","title":"Bottlehead Speedball 1.1 Upgrade for Crack Amplifier","description":"\u003cp class=\"p1\"\u003eUnlock the full potential of your Crack with the Speedball upgrade—a high-performance constant current source (CCS) modification that elevates your amp’s dynamics, clarity, and resolution. By replacing the stock plate load resistors with active current sources, Speedball tightens bass, improves treble extension, and enhances imaging without losing the signature warmth and smoothness of the original design.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhether you’re building a Crack from scratch or adding this to an existing build, Speedball brings a clear and immediate sonic upgrade—and a fun, accessible mod for DIYers looking to take their amp to the next level. \u003cstrong\u003eBuying this upgrade at the same time as buying a Crack saves you 10% off the upgrade's cost.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same Speedball 1.1 kit is an upgrade for Crack 1.1 and the original Crack. Most builders can complete this upgrade in an evening, but remember that there is no award for the fastest build. Check out our \u003ca title=\"Bottlehead Forums\" href=\"https:\/\/forums.bottlehead.mom\" rel=\"noopener\" target=\"_blank\"\u003euser forums\u003c\/a\u003e for more impressions and tech support.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52093293396337,"sku":"UP-SPEEDBALL-1-1","price":115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/bottlehead-speedball-11-upgrade-for-crack-amplifier-1699557.png?v=1769900048"},{"product_id":"twoquiet-stepped-attenuator-upgrade-for-crackatwoa","title":"Bottlehead TwoQuiet Stepped Attenuator Upgrade for Crackatwoa Headphone Amplifier","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eSave 10% when you buy this kit with the Crackatwoa!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe TwoQuiet upgrade replaces the Crackatwoa’s stock volume potentiometer with a precision 36-step attenuator, offering ultra-low noise, superior channel balance, and a more refined listening experience. Using high-quality resistors and a dual mono ladder design, the TwoQuiet delivers transparent volume control with consistent left-right tracking across all listening levels.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhether you’re listening at whisper-quiet volumes or driving your headphones with authority, the TwoQuiet upgrade ensures smoother operation, better imaging, and a tactile, high-end feel that enhances both performance and usability.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eMost users can build and install this upgrade in an evening or two.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52093293429105,"sku":"UP-TWOQUIET-CRACKATWOA","price":269.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/twoquiet-stepped-attenuator-upgrade-for-crackatwoa-headphone-amplifier-3937605.jpg?v=1752975600"},{"product_id":"bottlehead-gift-card","title":"Bottlehead Gift Card","description":"\u003cp\u003eNot sure what to get the audiophile in your life? Pick up a Bottlehead gift card so they can grab what they want.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"$10.00","offer_id":52093348610417,"sku":"ACC-GIFT-10","price":10.0,"currency_code":"USD","in_stock":true},{"title":"$25.00","offer_id":52093348643185,"sku":"ACC-GIFT-25","price":25.0,"currency_code":"USD","in_stock":true},{"title":"$50.00","offer_id":52093348675953,"sku":"ACC-GIFT-50","price":50.0,"currency_code":"USD","in_stock":true},{"title":"$100.00","offer_id":52093348708721,"sku":"ACC-GIFT-100","price":100.0,"currency_code":"USD","in_stock":true},{"title":"$250.00","offer_id":52093348741489,"sku":"ACC-GIFT-250","price":250.0,"currency_code":"USD","in_stock":true},{"title":"$500.00","offer_id":52093348774257,"sku":"ACC-GIFT-500","price":500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/bottlehead-gift-card-7477264.png?v=1752975580"},{"product_id":"bottlehead-badge","title":"Bottlehead Badge","description":"\u003cp\u003eWe now ship badges in each kit, but we're offering these in case you need more.\u003c\/p\u003e\n\u003cp\u003eShow your authority with a Bottlehead badge. We looked around for a good looking badge for a long time, and the 1\" square deeply etched gold tinted badge will add a touch of class to your project and let folks know you're a hardcore Bottlehead DIYer the minute they scope out your system. We also now offer a new version with our updated wordmark.\u003c\/p\u003e\n\u003cp\u003eComes with a peel and stick adhesive back. Put 'em on wooden bases, transformer bells, speaker cabinets, chassis plates, solder station, the fridge, your lunchbox, and darned near anything else that's flat and smooth. We sell these at our cost, and therefore do not offer discounts on this product.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Square logo","offer_id":55796993360241,"sku":"ACC-BADGE","price":8.0,"currency_code":"USD","in_stock":true},{"title":"New wordmark version","offer_id":55796996866417,"sku":"ACC-BADGE-WORDMARK","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/BottleheadBadge.heic?v=1761697693"},{"product_id":"bottlehead-cap","title":"Bottlehead Cap","description":"\u003cp\u003eWe did a tiny run of these caps back in 2001 and they sold out in a day. Must have been a sign, because we're still selling them today. It's a black, washed brushed cotton twill unconstructed \"gap cap\", with a self fabric closure with a ring buckle for adjustability and a 4 stitch sweatband. They hold up so well that Doc still wears his twenty year old hat for good luck when he races at Bonneville. These caps have velvety finish to them that really sets off the gold thread Bottlehead logo.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102012600689,"sku":"APP-CAP","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/bottlehead-cap-1050299.png?v=1752975580"},{"product_id":"bottlehead-power-cord-kit","title":"Bottlehead Power Cord Kit","description":"\u003cp\u003eThe difference is audible. Rather than trying to come up with some far fetched theory like most cable manufacturers I will simply state that I find that it makes our gear sound better than the stock power cord and leave it at that.\u003c\/p\u003e\n\u003cp\u003eThese cords are about six feet in length (you're hand-twisting the wires, so some variablity is expected) and include a hospital-grade, three pronged plug. These connectors work on US-style wall outlets; please do not purchase if you are outside of the US (or if your wall plug isn't using US-style outlets).\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102015451505,"sku":"ACC-POWER-CORD","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/merry-crackmas-bundle-2783659.jpg?v=1752975570"},{"product_id":"kaiju-300b-amplifier-kit","title":"Bottlehead Kaiju 300B Amplifier Kit","description":"\u003cp class=\"p1\"\u003eKaiju is our premium 300B power amplifier designed for those who want both finesse \u003cem\u003eand\u003c\/em\u003e muscle. Delivering 8 watts per channel with classic triode richness and outstanding clarity, it’s a powerful partner for high-efficiency speakers. Whether you’re driving full-range drivers or classic horns, Kaiju’s spacious soundstage and articulate dynamics bring music to life with authority. Kaijus can also be wired as monoblocks to double their power output - just buy a second kit and we'll help you configure your build to accommodate.\u003cbr\u003e\u003cbr\u003eYou can learn more about the DC Filament Supply upgrade for this kit, which lowers the (already low) level of noise in super efficient speakers at \u003ca href=\"https:\/\/bottlehead.mom\/product\/dc-filament-supply-for-kaiju-300b-amplifier\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003ethis \u003c\/a\u003e\u003ca title=\"DC Filament Supply for Kaiju 300B Amplifier\" href=\"..\/..\/..\/..\/..\/products\/dc-filament-supply-for-kaiju-300b-amplifier\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003elink\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWe consider the Kaiju to be a level three kit, which means that we still think anyone can build it, but less experienced builders might want to cut their teeth on a couple smaller soldering projects first.\u003cbr\u003e\u003cbr\u003eThe Kaiju has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003eI\u003c\/strong\u003e\u003cstrong\u003enternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102751879537,"sku":"AMPK-KAIJU","price":2145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/kaiju-300b-amplifier-kit-8026421.jpg?v=1752975579"},{"product_id":"stereomour-ii-stereo-single-ended-integrated-2a3-amp","title":"Bottlehead Stereomour II Stereo Single Ended Integrated 2A3 Amp","description":"\u003cp class=\"p1\"\u003eThe Bottlehead Stereomour II is a single-ended 2A3 stereo amplifier delivering 3.5 watts per channel of pure triode magic. With its natural tone and vivid midrange, it’s the ideal match for high-efficiency speakers in nearfield, desktop, or intimate room setups. Built-in volume control and input switching let it operate as an integrated amp.\u003c\/p\u003e\n\u003cp\u003eThe Stereomour II has three incredible upgrades that make it a tinkerer's dream. Lower the already-low noise floor with the \u003ca title=\"DC Filament Supply Upgrade for Stereomour II\" href=\"..\/..\/..\/..\/..\/products\/dc-filament-supply-for-stereomour-ii-amplifier\" rel=\"noopener\" target=\"_blank\"\u003eDC Filament Supply Upgrade\u003c\/a\u003e, add a premium coarse and fine stepped volume controls with the \u003ca title=\"MourQuiet Stepped Attenuator Upgrade for Stereomour II\" href=\"..\/..\/..\/..\/..\/products\/mourquiet-stepped-attenuator-upgrade-for-stereomour-ii\" rel=\"noopener\" target=\"_blank\"\u003eMourQuiet Attenuator\u003c\/a\u003e, and expand dynamic performance with the \u003ca title=\"Shunt Regulator Upgrade for Stereomour II\" href=\"..\/..\/..\/..\/..\/products\/stereomour-ii-shunt-regulator-upgrade-kit\" rel=\"noopener\" target=\"_blank\"\u003eShunt Regulator Upgrade\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWe have a vibrant community on \u003ca title=\"Bottlehead Forums\" href=\"https:\/\/forums.bottlehead.mom\" rel=\"noopener\" target=\"_blank\"\u003eour forums\u003c\/a\u003e. Check out user impressions, get inspiration for your build, and chat with us if you need help getting your kit assembled.\u003c\/p\u003e\n\u003cp\u003eThe Steremour II has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003einternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102751912305,"sku":"AMPK-STEREOMOUR-II","price":1485.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/stereomour-ii-stereo-single-ended-integrated-2a3-amp-8218449.jpg?v=1752975579"},{"product_id":"dc-filament-supply-for-kaiju-300b-amplifier","title":"DC filament supply for Bottlehead Kaiju 300B amplifier","description":"\u003cp\u003eThe Kaiju DC filament supply upgrade is a regulated DC supply conversion for the AC heated 300B filaments of the stock Bottlehead Kaiju 300B amplifier. There is a separate DC supply for each 300B, composed of low voltage drop Schottky rectifiers, a CLC filter using a common mode choke, and a low noise regulator optimized for fast transient response.\u003c\/p\u003e\n\u003cp\u003eThis supply will reduce the already exceptionally low noise floor of the AC heated Kaiju amplifier to levels acceptable for use with the most sensitive horn speakers. Its installation is recommended in particular for use with speakers above 96dB@1W@1M sensitivity. It may also be useful in systems employing speakers with a lower sensitivity, enhancing the sense of a black background between the notes or in quiet passages of music.\u003c\/p\u003e\n\u003cp\u003eThis kit is mostly constructed on a printed circuit board. Experienced builders can expect to complete the upgrade in an evening or two (but take your time!). \u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102751945073,"sku":"UP-KAIJU-DC-FILAMENT-SUPPLY","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/dc-filament-supply-for-kaiju-300b-amplifier-5576316.jpg?v=1752975578"},{"product_id":"dc-filament-supply-for-stereomour-ii-amplifier","title":"DC filament supply for Bottlehead Stereomour II amplifier","description":"\u003cp\u003eThe Stereomour II DC filament supply upgrade is a DC supply conversion for the AC heated 2A3 filaments of the stock Stereomour II amplifier. There is a separate DC supply for each 2A3, composed of low voltage drop Schottky rectifiers, a CLC filter using a common mode choke. This supply will reduce the already exceptionally low noise floor of the AC heated Stereomour II amplifier to levels acceptable for use with the most sensitive horn speakers.\u003c\/p\u003e\n\u003cp\u003eIts installation is recommended in particular for use with speakers above 96dB@1W@1M sensitivity. It may also be useful in systems employing speakers with a lower sensitivity, enhancing the sense of a super black background between the notes or in quiet passages of your music.\u003c\/p\u003e\n\u003cp\u003ePlease note that this upgrade is only to be installed in the Stereomour II. The original Stereomour uses a different power transformer that is not compatible with this upgrade.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102751977841,"sku":"UP-STEREOMOUR-II-DC-FILAMENT-SUPPLY","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/dc-filament-supply-for-stereomour-ii-amplifier-1513798.jpg?v=1752975578"},{"product_id":"mourquiet-stepped-attenuator-upgrade-for-stereomour-ii","title":"MourQuiet Stepped Attenuator Upgrade for Stereomour II","description":"\u003cp\u003eWhen we were developing the BeePre 300B preamp kit we built the prototype preamp circuit itself on a pair of chassis, and we built several outboard chassis platforms that allowed us to try various attenuator schemes. We tried all sorts of schemes: inexpensive carbon potentiometers, our old standby Sweetest whispers attenuator, high end stepped attenuators from other manufacturers, transformer volume controls, ladders, shunts, series steps, etc., etc. The end result was the popular BeeQuiet attenuator upgrade for the BeePre.\u003c\/p\u003e\n\u003cp\u003eThis design beat out the others by quite a sonic margin, and now the same 36 step attenuator design is available as an upgrade for the Stereomour II amplifier (this kit will not fit in earlier versions of the Stereomour amp).\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752010609,"sku":"UP-STEREOMOUR-II-MOURQUIET","price":269.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/mourquiet-stepped-attenuator-upgrade-for-stereomour-ii-1409857.jpg?v=1752975578"},{"product_id":"stereomour-ii-shunt-regulator-upgrade-kit","title":"Stereomour II Shunt Regulator Upgrade Kit","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eDirectly heated triodes like the 2A3 output tubes used in the Stereomour II amplifier are exceptionally linear, which contributes to a DHT amp‚Äôs great sense of realism. One of the challenges of designing a fully capable DHT amp is to make the preceding driver stage as close as possible to the output stage in terms of linearity without sacrificing gain. We use a couple of different means to optimize the performance of the driver stage.\u003c\/span\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752043377,"sku":"UP-STEREOMOUR-II-SHUNT-REGULATOR","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/stereomour-ii-shunt-regulator-upgrade-kit-8177837.jpg?v=1752975578"},{"product_id":"beepre2-300b-preamplifier-kit","title":"Bottlehead BeePre2 300B Preamplifier Kit","description":"\u003cp class=\"p1\"\u003eThe Bottlehead BeePre2 is a 300B-based vacuum tube preamplifier that redefines what a line stage can be. Using directly heated triodes for voltage gain, it delivers breathtaking transparency, texture, and drive. The BeePre2 is a no-compromise centerpiece for serious tube systems—especially when paired with Bottlehead \u003ca title=\"Bottlehead Eros 2 Phono Preamplifier Kit\" href=\"..\/..\/..\/..\/..\/products\/eros-2-phono-preamplifier-kit\" rel=\"noopener\" target=\"_blank\"\u003ephono preamps\u003c\/a\u003e and \u003ca title=\"Bottleheaed Kaiju 300B Amplifier Kit\" href=\"..\/..\/..\/..\/..\/products\/kaiju-300b-amplifier-kit\" rel=\"noopener\" target=\"_blank\"\u003epower amps\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWe offer two upgrade options to make the BeePre2 even more versatile. The \u003ca title=\"Bee2Quiet Stepped Attenuator\/Constant Current Source Upgrade for BeePre2\" href=\"https:\/\/bottlehead.mom\/products\/bee2quiet-upgrade-for-beepre2\" rel=\"noopener\" target=\"_blank\"\u003eBee2Quiet\u003c\/a\u003e replaces the stock volume control on your BeePre2 with a stepped attenuator featuring stereo coarse and fine controls with thirty-six 1.5dB steps for a total of -52.5dB attenuation. Add the \u003ca title=\"Hybrid Shunt Regulator and Low Impedance Balanced Output upgrade kit\" href=\"https:\/\/bottlehead.mom\/products\/beepre2-output-upgrade-hybrid-shunt-regulator-and-low-impedance-balanced-output\" rel=\"noopener\" target=\"_blank\"\u003eHybrid Shunt Regulator and Low Impedance Balanced Output upgrade kit\u003c\/a\u003e to lower output impedance substantially to about 400 ohms from the unbalanced output, and allow for the addition of balanced XLR outputs.\u003c\/p\u003e\n\u003cp\u003eIt typically takes anywhere from a day to a couple of weeks to get your kit ready to ship.\u003cbr\u003e\u003cbr\u003eThe Bottlehead BeePre2 has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003einternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752076145,"sku":"PREK-BEEPRE-2","price":1535.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/Bottlehead_BeePre2_Lifestyle.jpg?v=1775341484"},{"product_id":"moreplay-upgrade-kit","title":"Moreplay Upgrade Kit","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThis kit incorporates our tried and true power supply upgrades as well as upgrading the stock potentiometers to the great sounding Alps Blue series. The result is a more quiet background, about 6dB more gain and improved resolution.\u003c\/span\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752108913,"sku":"UP-MOREPLAY-UPGRADE","price":289.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/moreplay-upgrade-kit-1867524.jpg?v=1752975577"},{"product_id":"moreplay-preamplifier-kit","title":"Bottlehead Moreplay Preamplifier Kit","description":"\u003cp class=\"p1\"\u003eMoreplay is a retro-nod to our Foreplay preamp, which was our most popular kit of the late 90s and early 2000s. Foreplay was intended to be a basic and easy to build preamp to accompany our original S.E.X. amplifier kit which, at the time, was a power amp with no built in level control.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Moreplay is a compact, line-level tube preamp that adds drive, dimension, and a touch of tube sweetness to any audio system. Featuring a 6V6-based circuit and three switchable inputs, it’s the perfect hub for digital and analog sources alike. Whether you’re building your first tube system or looking to enhance a solid-state rig, Moreplay delivers maximum musicality with minimum fuss.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Bottlehead Moreplay has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003einternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752141681,"sku":"PREK-MOREPLAY","price":485.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/moreplay-preamplifier-kit-1406004.jpg?v=1752975577"},{"product_id":"beepre2-output-upgrade-hybrid-shunt-regulator-and-low-impedance-balanced-output","title":"BeePre2 Output Upgrade - Hybrid Shunt Regulator and Low Impedance Balanced Output","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eThis upgrade kit is for the current production \u003c\/span\u003e\u003ca href=\"https:\/\/bottlehead.mom\/products\/beepre2-300b-preamplifier-kit\" title=\"Bottlehead BeePre2 300B Preamplifier Kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBeePre2\u003c\/a\u003e\u003cspan\u003e (10\" x 16\" chassis - It will not work at all with the original BeePre in the 12\" x 12\" chassis) \u003c\/span\u003e\u003cstrong\u003ethat has already had the\u003ca href=\"https:\/\/www.bottlehead.mom\/products\/bee2quiet-upgrade-for-beepre2\" title=\"Bee2Quiet Upgrade Kit for Bottlehead BeePre2\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e Bee2Quiet upgrade\u003c\/a\u003e installed\u003c\/strong\u003e\u003cspan\u003e. You \u003cstrong\u003emust \u003c\/strong\u003einstall the Bee2Quiet upgrade before installing this upgrade.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Hybrid Shunt Regulator and Low Impedance Balanced Output upgrade kit lowers output impedance substantially to about 400 ohms from the unbalanced output, allows for the addition of balanced XLR outputs, and - as a bonus - removes turn-on thumps you normally get with simple single-stage circuits thanks to a slower warm-up behavior.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752174449,"sku":"UP-BEEPRE2-SHUNT-REGULATOR","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/beepre2-output-upgrade-hybrid-shunt-regulator-and-low-impedance-balanced-output-8764086.jpg?v=1752975576"},{"product_id":"bee2quiet-upgrade-for-beepre2","title":"Bee2Quiet Stepped Attenuator\/Constant Current Source Upgrade for BeePre2","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cem\u003eThis upgrade kit is for the current production BeePre2 only (10\" x 16\" chassis). \u003cstrong\u003eIt will not work at all with the original BeePre (12\" x 12\" chassis)\u003c\/strong\u003e. \u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Bee2Quiet replaces the stock volume and balance control on your BeePre2 with a stepped attenuator featuring stereo coarse and fine controls with thirty-six 1.5dB steps for a total of -52.5dB attenuation. Note that the upgrade removes the balance control completely from the circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe provide all the parts you need, including the high quality rotary switches, Vishay Dale metal film resistors, and the required hardware. As with every Bottlehead kit, you'll also receive an extremely detailed manual and support from our forum.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752207217,"sku":"UP-BEEPRE2-BEE2QUIET","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/bee2quiet-stepped-attenuatorconstant-current-source-upgrade-for-beepre2-4027713.jpg?v=1752975576"},{"product_id":"eros-2-phono-preamplifier-kit","title":"Bottlehead Eros 2 Phono Preamplifier Kit","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eWe are waiting for power transformers. We anticipate having the Eros 2 in stock again in late August or early September.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Bottlehead Eros 2 is a high-performance tube phono preamp built for moving magnet and high-output moving coil cartridges. With its all-tube gain stages and accurate passive RIAA equalization, it extracts warmth, texture, and energy from your vinyl collection. Designed for serious analog enthusiasts, Eros 2 offers a dramatic sonic upgrade over entry-level phono stages, especially when paired with Bottlehead’s line and power amps.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Eros 2 has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003einternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752239985,"sku":"PHONOK-EROS-2","price":835.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/eros-2-phono-preamplifier-kit-9366312.jpg?v=1752975573"},{"product_id":"integration-upgrade-for-reduction-phono-preamp","title":"Integration Upgrade for Reduction Phono Preamp","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eNow the benefits of increased dynamics, more quiet background, better bass control, more gain and a sense of better frequency extension can be had for the Reduction Phono Preamp\u003c\/span\u003e\u003cspan\u003e. Four Camille Cascode Constant Current Sources (C\u003c\/span\u003e\u003csup\u003e4\u003c\/sup\u003e\u003cspan\u003eS) replace the stock plate load resistors, dramatically increasing the load impedance for approximately 60dB better Power Supply Ripple Rejection (PSRR) and the extraction of the full gain available from the tubes (up from about 36dB to about 40dB). The addition of a Zener shunt voltage regulator lowers the power supply impedance yielding a sense of increased extension of both bass and treble.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNote that this is for the Reduction Phono Preamp and not the Eros or Eros 2.\u003c\/span\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752272753,"sku":"UP-REDUCTION-INTEGRATION","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/integration-upgrade-for-reduction-phono-preamp-1200789.jpg?v=1752975573"},{"product_id":"stat-electrostatic-headphone-energizer","title":"Stat Electrostatic Headphone Energizer","description":"\u003cp\u003eThe Bottlehead Stat is a zero global feedback, class A tube electrostatic headphone amplifier that features both 580V Stax Pro Bias and 230V Stax Normal (legacy) bias jacks. There is a single input, a balance control, and level control. It has a universal power transformer. Because of the high voltages present inside the chassis this product is only offered in assembled form.\u003c\/p\u003e\n\u003cp\u003eNo global feedback is used in this design, which provides a smooth, open sound. We have listened to Nectar Sound, Stax and Koss ES headphones and they all work as expected. To further enhance this design, each differential stage uses our Bottlehead C4S constant current source. These provide a very high impedance under the cathodes of each differential amplifier, providing very tight AC balance in each stage.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52102752403825,"sku":"HP-STAT","price":1699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/stat-electrostatic-headphone-energizer-1050760.jpg?v=1752975574"},{"product_id":"mainline-1-1-headphone-amplifier-kit","title":"Bottlehead Mainline 1.1 Headphone Amplifier Kit","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eWe are waiting for power transformers. We anticipate having the Mainline in stock again in late August or early September. \u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eMainline is Bottlehead’s flagship headphone amplifier, designed for the discerning audiophile. This fully balanced, single-ended amp delivers low noise, stunning resolution, and wide dynamic range—making it an ideal match for top-tier headphones like the Sennheiser HD800, Focal Utopia, and ZMF line. With a versatile circuit and precision stepped attenuator, the Mainline is a statement piece both in design and sound.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Mainline has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003einternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":52109623918961,"sku":"HPK-MAINLINE-1-1","price":1435.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/mainline-11-headphone-amplifier-kit-5576652.jpg?v=1752975574"},{"product_id":"replacement-wood-bases","title":"Replacement Wood Bases","description":"\u003cp\u003eOccasionally we get requests for replacement wood base kits, either to replace a less than perfect finishing job or to dress up the latest homebrew concoction to emerge from the lab. Select the size you need from the popup menu; for your convenience, here is a list of products for each size:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e6″ x 10″\u003c\/strong\u003e Crack, Quickie, Quicksand, Fix, Submissive, Foreplay I, Foreplay II, Seduction, Paramour I, Paraglow, Afterglow, B-Glow, Parabee, original S.E.X. kit\u003cbr\u003e\u003cstrong\u003e8″ x 10″\u003c\/strong\u003e Eros 1, Reduction, S.E.X. 2.0, S.E.X. 2.1, S.E.X. 3.0, Foreplay III, Paramour II, Paramount\u003cbr\u003e\u003cstrong\u003e8″ x 12″\u003c\/strong\u003e Seductor, Eros 2\u003cbr\u003e\u003cstrong\u003e10″ x 10″\u003c\/strong\u003e Smash\u003cbr\u003e\u003cstrong\u003e10″ x 12″\u003c\/strong\u003e Stereomour II, Crackatwoa, Stereomour I\u003cbr\u003e\u003cstrong\u003e12″ x 12″\u003c\/strong\u003e Mainline, BeePre, Tode\u003cbr\u003e\u003cstrong\u003e10″ x 16″\u003c\/strong\u003e Kaiju\u003cbr\u003e\u003cstrong\u003eParadyne - \u003c\/strong\u003eReplacement base for one Paradyne monoblock. Buy two if you need to replace both. These take much more effort to produce so the price has been adjusted accordingly.\u003c\/p\u003e\n\u003cp\u003ePlease note that the standard wait time applies to this product. The custom milled wood pieces are frequently on backorder for our kits, and we will ship orders in the sequence they are received.\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"6″ x 10″","offer_id":55284901806449,"sku":"RP-BASE-6x10","price":50.0,"currency_code":"USD","in_stock":true},{"title":"8\" x 10\"","offer_id":55284901839217,"sku":"RP-BASE-8x10","price":55.0,"currency_code":"USD","in_stock":true},{"title":"8\" x 12\"","offer_id":55284901871985,"sku":"RP-BASE-8x12","price":60.0,"currency_code":"USD","in_stock":true},{"title":"10\" x 10\"","offer_id":55284901904753,"sku":"RP-BASE-10x10","price":60.0,"currency_code":"USD","in_stock":true},{"title":"10\" x 12\"","offer_id":55284901937521,"sku":"RP-BASE-10x12","price":67.0,"currency_code":"USD","in_stock":true},{"title":"12\" x 12\"","offer_id":55284901970289,"sku":"RP-BASE-12x12","price":72.0,"currency_code":"USD","in_stock":true},{"title":"10\" x 16\"","offer_id":55284902003057,"sku":"RP-BASE-10x16","price":77.0,"currency_code":"USD","in_stock":true},{"title":"Paradyne (one base)","offer_id":63455938249073,"sku":"RP-BASE-PARADYNE","price":100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/replacement-wood-bases-2382529.webp?v=1752975572"},{"product_id":"hlmp-6000-leds","title":"HLMP-6000 LEDs","description":"\u003cp\u003e\u003cspan\u003eHere is a pack of five HLMP-6000 LEDs like we use in a lot of our kits. If you happen to mess one up installing it (hey, it happens to all of us) it can be difficult to locate replacements without a minimum order. A pack of these could be a handy backup if you build a single kit, and even more so if you build several.\u003c\/span\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":55284902134129,"sku":"RP-HLMP6000","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/hlmp-6000-leds-5697104.jpg?v=1752975571"},{"product_id":"rocker-switch","title":"Rocker Switch","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003eIf you’re reading this, you probably melted your power switch. It’s OK, we’ve all done it. Here’s the spot to get a fresh one, and while you’re waiting for the package, why not watch \u003ca href=\"https:\/\/youtu.be\/ffdwsnrQxAg\" target=\"_blank\" title=\"Bottlehead tech videos - Power Switch Soldering\" rel=\"noopener\"\u003ethis video\u003c\/a\u003e to figure out how to only do this one more time?\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":55284909244785,"sku":"RP-ROCKER","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/rocker-switch-4851884.webp?v=1752975570"},{"product_id":"sex-4-kit-for-headphones-speakers","title":"Bottlehead SEX 4 Kit for Headphones \u0026 Speakers","description":"\u003cp\u003eSay hello to the new Single Ended eXperimentation (SEX) kit!\u003c\/p\u003e\n\u003cp\u003eThe SEX 4 has a ton of changes under the hood. For starters, it uses two 6FM7 tubes and a refined circuit to drive more than double the power of the SEX 3. We’ve heard from builders that they’re increasingly using preamps and digital sources, so we’ve removed the volume control. This plus the roomier chassis provides ample opportunity for experimentation.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpeaking of experimentation, we’ve added a useful experiment to the stock kit. Sitting front and center is a new switch. Flipping it \u003c\/span\u003e\u003cspan\u003econtrols the\u003c\/span\u003e\u003cspan\u003e amount of local, plate-to-plate feedback \u003c\/span\u003e\u003cspan\u003eapplied\u003c\/span\u003e\u003cspan\u003e in the \u003c\/span\u003e\u003cspan\u003ecircuit\u003c\/span\u003e\u003cspan\u003e. What does that mean? The higher feedback allows the SEX to act as a low-gain power amplifier with \u003c\/span\u003e\u003cspan\u003etighter\u003c\/span\u003e\u003cspan\u003e mid- and low-end performance and a blacker background. Switching to lower feedback mode gets you performance closer to a traditional desktop tube headphone amp. You should see more warmth, emotion, and character.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn either feedback mode, the SEX 4 feels a lot more controlled than the SEX 3 in the bass department, and the lower gain option mates solidly to a Moreplay and avoids hair trigger volume control issues. We’ve built a bundle so you can buy both the SEX 4 and the Moreplay at a discount.\u003c\/p\u003e\n\u003cp\u003eSEX 4 has a universal power transformer and can be used worldwide by following the wiring instructions in the manual. Please note that \u003cstrong\u003einternational customers will need to provide their own power cord\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":55747018359153,"sku":"COMBOK-SEX-4-0","price":885.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/more-sex-combo-5145595.png?v=1757954364"},{"product_id":"bottlehead-leg-and-bottom-cover-kit","title":"Bottlehead Cover Up Leg and Bottom Cover Kit","description":"\u003cp\u003eAt long last the bottom cover our customers have been asking for, with the addition of 2 inch tall hairpin legs for an elegant Atomic Age look. The laser cut protective bottom cover has ventilation slots and pre-drilled holes to locate mounting screws. Assembly is simple:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTake the chassis off the base and flip the base over.\u003c\/li\u003e\n\u003cli\u003eCenter the bottom on the base and with the supplied bit drill three 3\/32\" holes in each corner of the base using the bottom mounting holes as a guide.\u003c\/li\u003e\n\u003cli\u003eAlign the legs with the bottom cover mounting holes and screw them down.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe now offer these for kits with these base sizes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6\" x 10\"\u003c\/strong\u003e bases, like the Crack and legacy kits like Seduction, Foreplay 1 and 2, Submissive, the Fix, Quickie, Quicksand, Original (1990s) S.E.X. monoblocks, Afterglow, B-Glow, Paramour, Paraglow, ParaBee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8\" x 10\"\u003c\/strong\u003e bases, like Moreplay and legacy kits like \u003cspan\u003eEros 1, Reduction, S.E.X. 2.0, S.E.X. 2.1, S.E.X. 3.0, Foreplay III, Paramour II, Paramount\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8\" x 12\"\u003c\/strong\u003e bases, like SEX 4 and Eros 2\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt's the perfect accessory for those looking to elevate their Crack - both aesthetically and physically. Don't forget to add a \u003ca href=\"https:\/\/bottlehead.mom\/collections\/accessories\/products\/bottlehead-badge\" target=\"_blank\" title=\"Bottlehead Badge\" rel=\"noopener noreferrer\"\u003ebadge\u003c\/a\u003e!\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"6\" x 10\"","offer_id":55800837931377,"sku":"ACC-LEG-AND-COVER-6-10","price":49.0,"currency_code":"USD","in_stock":true},{"title":"8\" x 10\"","offer_id":55800837964145,"sku":"ACC-LEG-AND-COVER-8-10","price":52.0,"currency_code":"USD","in_stock":true},{"title":"8\" x 12\"","offer_id":55800837996913,"sku":"ACC-LEG-AND-COVER-8-12","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/crack-up-legs-and-bottom-cover-kit-4128632.jpg?v=1752975579"},{"product_id":"sex-4-moreplay-bundle","title":"The Bottlehead MoreSEX System","description":"\u003cp\u003eWe built the SEX 4 to be the perfect companion to our popular Moreplay preamplifier. We're offering the two as a bundle at a discount. After all, everyone could use More SEX. In this kit you'll get:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener noreferrer\" title=\"Bottlehead SEX 4 Kit\" href=\"https:\/\/bottlehead.mom\/products\/single-ended-experimenters-kit-4-0-for-headphones-sensitive-speakers\" target=\"_blank\"\u003eThe all-new SEX 4 amplifier kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener noreferrer\" title=\"Bottlehead Moreplay Preamplifier Kit\" href=\"https:\/\/bottlehead.mom\/products\/moreplay-preamplifier-kit\" target=\"_blank\"\u003eOur best-selling Moreplay preamplifier kit\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGet 10% off the \u003ca rel=\"noopener noreferrer\" title=\"Moreplay Upgrade Kit\" href=\"https:\/\/bottlehead.mom\/products\/moreplay-upgrade-kit\" target=\"_blank\"\u003eMoreplay Upgrade\u003c\/a\u003e and \u003ca rel=\"noopener noreferrer\" title=\"Bottlehead Power Cord Kit\" href=\"https:\/\/bottlehead.mom\/products\/bottlehead-power-cord-kit\" target=\"_blank\"\u003ePower Cord kit\u003c\/a\u003e if you buy them with the combo! \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":62394534494577,"sku":"BUNDLE-MORESEX","price":1219.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/more-sex-combo-8153832.png?v=1759027208"},{"product_id":"bottlehead-sticker-pack","title":"Bottlehead Sticker Pack","description":"\u003cp\u003eWe’ve been adding logo stickers to new orders since June of 2025, so we decided to add a pack of three stickers to the store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe three stickers included in this pack are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Bottlehead mascot head in mirror vinyl (2”x2”)\u003c\/li\u003e\n\u003cli\u003eA full-body, potentially creepy Bottlehead mascot on white vinyl (3”x1”)\u003c\/li\u003e\n\u003cli\u003eA stylized Bottlehead Crack designed by graphic artist Tarron Ruiz (2”x1.5”)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e We may do additional runs or different stickers in the future. Have a suggestion for a different sticker? \u003ca href=\"mailto:info@bottlehead.mom\" title=\"Email us your ideas!\"\u003eLet us know\u003c\/a\u003e!\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":62579478266225,"sku":"ACC-STICKER-PACK","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/bottlehead-sticker-pack-7501649.png?v=1762441375"},{"product_id":"pjccs-upgrade-for-the-bottlehead-quickie","title":"PJCCS Upgrade for the Bottlehead Quickie","description":"\u003cp\u003eThis is a constant current source upgrade for the retired Bottlehead Quickie preamp kit. It cannot be used in any other kits. \u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":62827724210545,"sku":"UP-PJCCS","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/pjccs-upgrade-for-the-bottlehead-quickie-1535673.jpg?v=1766585646"},{"product_id":"bottlehead-paradyne-805a-monoblock-amplifier-kit","title":"Bottlehead Paradyne 805A Monoblock Amplifier Kit","description":"\u003ch4 class=\"p1\"\u003e\n\u003cb\u003eThirty-five watts of single-ended authority. Our finest design yet.\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cp class=\"p3\"\u003eFifteen years of development have gone into this design, and you can tell.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s2\"\u003eBuilt around the legendary \u003c\/span\u003e\u003cstrong\u003e805A\u003c\/strong\u003e transmitting tube\u003cspan class=\"s2\"\u003e, Paradyne is the most powerful amplifier kit we have ever offered. At \u003c\/span\u003e\u003cb\u003e35 watts per channel\u003c\/b\u003e\u003cspan class=\"s2\"\u003e, delivered through a \u003c\/span\u003etrue single-ended monoblock topology\u003cspan class=\"s2\"\u003e, it produces \u003c\/span\u003e\u003cb\u003etwice the power of a Kaiju run as monoblocks, \u003c\/b\u003e\u003cspan class=\"s2\"\u003eand almost \u003c\/span\u003e\u003cb\u003efour times the output of a single Kaiju amplifier\u003c\/b\u003e\u003cspan class=\"s2\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThis is a big step forward for our kits.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eSingle-ended amplifiers are prized for immediacy, tone density, and realism but they are rarely associated with real power. Paradyne was created to challenge that assumption.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eParadyne was designed by the holy trinity of legendary audio gurus Paul Birkeland, Paul Joppa, and Dan Schmalle. By combining the brute force of the 805A with a carefully considered driver and output stage using \u003cspan class=\"s1\"\u003e\u003cb\u003e7L7 and 6BL7 tubes\u003c\/b\u003e\u003c\/span\u003e, Paradyne delivers headroom, control, and scale that redefine what a single-ended amplifier can do with a wide range of loudspeakers. The result is an amplifier that retains the harmonic richness Bottlehead is known for while driving speakers that would have been unthinkable with earlier designs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eIron Maidens\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eParadyne includes all-new, Bottlehead-designed iron. That means you're getting a cutting edge power transformer, our beefiest output transformer, and a new and improved plate choke. This new suite of iron provides performance gains over previous designs, and allows for switching output impedances by moving one ring terminal instead of re-wiring the secondary.\u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003ePurpose-Built Monoblocks\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp class=\"p3\"\u003eEach Paradyne kit includes \u003cspan class=\"s2\"\u003e\u003cb\u003ea pair of monoblocks\u003c\/b\u003e\u003c\/span\u003e, because this amplifier was never meant to be compromised by a shared power supply or layout constraints. Separating the layout into two chassis allowed us to provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eDedicated power and output stages per channel\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eShorter signal paths\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eGreater channel separation\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eAbsolute focus on performance\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eEasier user serviceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p3\"\u003eThis is power done properly.\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThese amps ship in two separate, well packed, insured boxes to ensure we can protect the components (and because they're heavy). Once shipped you'll get separate tracking codes for each box.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cem\u003eT\u003c\/em\u003e\u003cem\u003ehis product has a universal power transformer and can be used worldwide.  Please note that \u003cstrong\u003einternational customers will need to provide their own power cord.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":63388612395377,"sku":"AMPK-PARADYNE-SQUARE","price":5499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/Bottlehead_Paradyne_Hero.jpg?v=1775339814"},{"product_id":"paradyne-illuminated-meter-kit","title":"Paradyne Illuminated Meter Kit","description":"\u003cp\u003eFor a handful of reasons, the Bottlehead Paradyne 805A Monoblocks come with an unlit meter by default. It is possible to add a lit meter to the kit after the base build is completed.\u003c\/p\u003e\n\u003cp\u003eThis kit is for Paradyne owners who want to customize their kit with lit meters. We provide two lit meters and some additional wire required to make the meters work. You can find \u003ca href=\"https:\/\/forums.bottlehead.mom\/threads\/how-to-add-lit-meters-to-your-paradyne.16439\/#post-145046\" target=\"_blank\" title=\"How to Add Lit Meters to Your Paradyne - Bottlehead Forums\" rel=\"noopener\"\u003einstructions for installing these meters\u003c\/a\u003e on this forum post written by Paul Birkeland. \u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Orange","offer_id":63205940691313,"sku":"UP-PARADYNE-LIT-METERS-OR","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":63205940724081,"sku":"UP-PARADYNE-LIT-METERS-GR","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":63205940756849,"sku":"UP-PARADYNE-LIT-METERS-BL","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/paradyne-illuminated-meter-kit-4684612.jpg?v=1774954631"},{"product_id":"the-bottlehead-reference-system","title":"The Bottlehead Reference System","description":"\u003cp\u003eBeePre2 and Paradyne were designed with the same goals in mind: high headroom, low noise, and a direct, unforced presentation. Together, they deliver power and warmth without effort. With a conservatively rated 35 watts per channel, Paradyne brings nearly three times the output of our next most powerful amp, and BeePre2 is built to drive it properly.BeePre2’s low output impedance and ample voltage swing give Paradyne exactly what it wants at the input, with control and clarity intact. The result is a signal chain that stays stable from source to speaker, preserving dynamics, tone, and space without strain. No workarounds or mismatches. Just a front end and power stage operating as a system. Grab the combo for a 15% discount. \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe're now including the square version of our badge in each amplifier and preamplifier kit. If you prefer the word mark version, please note that in your order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: volume discounts do not apply to packages like the Reference System or MoreSex Combo.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":63353707495793,"sku":null,"price":5970.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/Bottlehead_Reference_System.jpg?v=1775339867"},{"product_id":"bottlehead-starter-toolkit","title":"Bottlehead Starter Toolkit","description":"\u003cp\u003eNew builders frequently ask what tools they need to get started. We were able to secure favorable pricing to bring this collection of high-quality tools to our Bottlehead friends for less than what’s available online and with a lot less effort. This collection includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne pound of \u003cstrong\u003eKester 63\/37 rosin core leaded solder\u003c\/strong\u003e. This will likely last you a long, long time and will help you make shiny, perfect solder joints.\u003c\/li\u003e\n\u003cli\u003eOne \u003cstrong\u003eXuron 450 tweezer nose pliers\u003c\/strong\u003e, which we’ve found to be excellent at bending wires and attaching them securely to terminal strips or tube socket pins.\u003c\/li\u003e\n\u003cli\u003eOne \u003cstrong\u003eHakko CHP 170 micro cutter \u003c\/strong\u003eflush cut wire trimmer. A trusted workhorse to remove all those excess leads. They’re on many a builder’s bench for a reason.\u003c\/li\u003e\n\u003cli\u003eOne \u003cstrong\u003eXcelite 101 #1 Phillips screwdriver \u003c\/strong\u003eto attach hardware to chassis plates. The pictures show a 102, but we've adjusted the kit a bit and haven't had time to take photos quite yet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou can check out \u003ca href=\"https:\/\/bottlehead.mom\/blogs\/bottleblog\/what-do-i-need-to-build-my-own-bottlehead-kit\" title=\"What do I need to build my Bottlehead kit?\" rel=\"noopener noreferrer\" target=\"_blank\"\u003ethis article\u003c\/a\u003e to see what other tools you may need to build your kit, but this gives you a strong start. \u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":63542736814449,"sku":"ACC-TOOLKIT","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/StarterKit.heic?v=1778425919"},{"product_id":"bottlehead-logo-shirt","title":"Bottlehead Logo Shirt","description":"\u003cp\u003eWe're excited to offer our refreshed logo on a new, higher quality t-shirt. We're not sure how long these will stick around, so grab one soon if you like it.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThese are made-to-order from our partners at Printful, which means they're printed as soon as you buy. Because these are made especially for you, they are non-returnable and non-refundable. In our limited testing, we've seen these run pretty true to size.\u003c\/p\u003e\n\u003cp\u003eHere's a little but of information about the shirt itself. We're not textile experts, so maybe you can do more with this information than we can:\u003cbr\u003e• 100% ring-spun cotton\u003cbr\u003e• Fabric weight: 6.1 oz\/yd² (206.8 g\/m²)\u003cbr\u003e• Garment-dyed\u003cbr\u003e• Relaxed fit\u003cbr\u003e• 7\/8″ double-needle topstitched collar\u003cbr\u003e• Twill-taped neck and shoulders for extra durability\u003cbr\u003e• Double-needle armhole, sleeve, and bottom hems\u003cbr\u003e• Blank shirt sourced from Honduras\u003cbr\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Black \/ S","offer_id":64362865197425,"sku":"5248434_15114","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ M","offer_id":64362865230193,"sku":"5248434_15115","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ L","offer_id":64362865262961,"sku":"5248434_15116","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ XL","offer_id":64362865295729,"sku":"5248434_15117","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 2XL","offer_id":64362865328497,"sku":"5248434_15118","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 3XL","offer_id":64362865361265,"sku":"5248434_16326","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 4XL","offer_id":64362865394033,"sku":"5248434_17500","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Midnight \/ S","offer_id":64362865426801,"sku":"5248434_21541","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Midnight \/ M","offer_id":64362865459569,"sku":"5248434_21542","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Midnight \/ L","offer_id":64362865492337,"sku":"5248434_21543","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Midnight \/ XL","offer_id":64362865525105,"sku":"5248434_21544","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Midnight \/ 2XL","offer_id":64362865557873,"sku":"5248434_21545","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Midnight \/ 3XL","offer_id":64362865590641,"sku":"5248434_21546","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Midnight \/ 4XL","offer_id":64362865623409,"sku":"5248434_21547","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Crimson \/ S","offer_id":64362865656177,"sku":"5248434_16547","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Crimson \/ M","offer_id":64362865688945,"sku":"5248434_16548","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Crimson \/ L","offer_id":64362865721713,"sku":"5248434_16549","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Crimson \/ XL","offer_id":64362865754481,"sku":"5248434_16550","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Crimson \/ 2XL","offer_id":64362865787249,"sku":"5248434_16551","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Crimson \/ 3XL","offer_id":64362865820017,"sku":"5248434_16552","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Crimson \/ 4XL","offer_id":64362865852785,"sku":"5248434_17513","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Khaki \/ S","offer_id":64362865885553,"sku":"5248434_21534","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Khaki \/ M","offer_id":64362865918321,"sku":"5248434_21535","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Khaki \/ L","offer_id":64362865951089,"sku":"5248434_21536","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Khaki \/ XL","offer_id":64362865983857,"sku":"5248434_21537","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Khaki \/ 2XL","offer_id":64362866016625,"sku":"5248434_21538","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Khaki \/ 3XL","offer_id":64362866049393,"sku":"5248434_21539","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Khaki \/ 4XL","offer_id":64362866082161,"sku":"5248434_21540","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Mustard \/ S","offer_id":64362866114929,"sku":"5248434_21548","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Mustard \/ M","offer_id":64362866147697,"sku":"5248434_21549","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Mustard \/ L","offer_id":64362866180465,"sku":"5248434_21550","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Mustard \/ XL","offer_id":64362866213233,"sku":"5248434_21551","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Mustard \/ 2XL","offer_id":64362866246001,"sku":"5248434_21552","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Mustard \/ 3XL","offer_id":64362866278769,"sku":"5248434_21553","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Mustard \/ 4XL","offer_id":64362866311537,"sku":"5248434_21554","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/bottlehead-logo-shirt-3773791.jpg?v=1788046510"},{"product_id":"the-b-team","title":"The Bottlehead B-Team 300B System","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/bottlehead.mom\/products\/the-bottlehead-reference-system\" title=\"Bottlehead Reference System\"\u003eReference System\u003c\/a\u003e gets all the glory, what with those big ol' 805As staring you in the face. And you can't help to love the plucky \u003ca href=\"https:\/\/bottlehead.mom\/products\/sex-4-moreplay-bundle\" title=\"Bottlehead SEX 4 and Moreplay Pairing\"\u003eMoreplay \u0026amp; SEX 4\u003c\/a\u003e pairing.\u003c\/p\u003e\n\u003cp\u003eBut what about the B-Team? Y'know... Bottlehead's legendary 300B lineup including the \u003ca href=\"https:\/\/bottlehead.mom\/products\/beepre2-300b-preamplifier-kit\" title=\"Bottlehead BeePre2 300B Preamplifier Kit\"\u003eBeePre2 300B Preamplifier\u003c\/a\u003e and the \u003ca href=\"https:\/\/bottlehead.mom\/products\/kaiju-300b-amplifier-kit\" title=\"Bottlehead Kaiju 300B Amplifier Kit\"\u003eKaiju 300B Amplifier kits\u003c\/a\u003e. Well, we think they're just swell.\u003c\/p\u003e\n\u003cp\u003eWhen you order the B-Team System, you'll get a BeePre2, a Kaiju, and two badges. Don't forget to add on their mods!\u003c\/p\u003e\n\u003cp\u003eAmplifiers in the B-Team System have universal power transformers and can be used worldwide by following the wiring instructions in the manuals. Please note that \u003cstrong\u003einternational customers will need to provide their own power cords.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Bottlehead","offers":[{"title":"Default Title","offer_id":64414475846001,"sku":null,"price":3240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/6408\/6641\/files\/kaiju-300b-amplifier-kit-8026421.jpg?v=1752975579"},{"product_id":"bottlehead-mascot-t-shirt","title":"Bottlehead Mascot T-Shirt","description":"We're excited to offer our refreshed logo on a new, higher quality t-shirt. We're not sure how long these will stick around, so grab one soon if you like it.\u003cbr\u003e\n\u003cbr\u003e\nThese are made-to-order from our partners at Printful, which means they're printed as soon as you buy. Because these are made especially for you, they are non-returnable and non-refundable. In our limited testing, we've seen these run pretty true to size.\u003cbr\u003e\n\u003cbr\u003e\nHere's a little but of information about the shirt itself. We're not textile experts, so maybe you can do more with this information than we can:\u003cbr\u003e\n• 100% ring-spun cotton\u003cbr\u003e\n• Fabric weight: 6.1 oz\/yd² (206.8 g\/m²)\u003cbr\u003e\n• Garment-dyed\u003cbr\u003e\n• Relaxed fit\u003cbr\u003e\n• 7\/8″ double-needle topstitched collar\u003cbr\u003e\n• Twill-taped neck and shoulders for extra durability\u003cbr\u003e\n• Double-needle armhole, sleeve, and bottom hems\u003cbr\u003e\n• Blank shirt sourced from Honduras\u003cbr\u003e\n","brand":"Bottlehead","offers":[{"title":"Black \/ S","offer_id":64476260204913,"sku":"4544187_15114","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ M","offer_id":64476260237681,"sku":"4544187_15115","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ L","offer_id":64476260270449,"sku":"4544187_15116","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 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