{"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","url":"https:\/\/bottlehead.mom\/products\/crack-1-1-otl-headphone-amplifier-kit","provider":"Bottlehead","version":"1.0","type":"link"}