{"product_id":"littledot-i-tube-headphone-amplifier","title":"LITTLEDOT I+ Tube Headphone Amplifier","description":"\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003ch1 style='margin: 0px 0px 5px; padding: 0px; font-size: 18px; font-weight: 400; line-height: 1.15; color: rgb(0, 0, 0); font-family: Arial, Verdana, \"helvetica neue\", Helvetica, sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cspan style=\"color:#000000;\"\u003e\u003cstrong\u003eLittle Dot I+ 6JI X2 \u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eTube standard\u003c\/strong\u003e\n\u003c\/h1\u003e\n\n\u003ch1 style='margin: 0px 0px 5px; padding: 0px; font-size: 18px; font-weight: 400; line-height: 1.15; color: rgb(0, 0, 0); font-family: Arial, Verdana, \"helvetica neue\", Helvetica, sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:16px;\"\u003eThe Little Dot I+ is a hybrid transistor-vacuum tube headphone amplifier, which combines the smooth, musical sound of tubes with the high output current of transistors. The vacuum tube stage is run in Class-A, the MC33078 operational amplifier (socketed) provides voltage amplification, and BD139\/BD140 transistors serve as output buffers.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n \n\u003ch1 style='margin: 0px 0px 5px; padding: 0px; font-size: 18px; font-weight: 400; line-height: 1.15; color: rgb(0, 0, 0); font-family: Arial, Verdana, \"helvetica neue\", Helvetica, sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;'\u003e\n\u003cstrong\u003eLittle Dot I+ 6CQ6 X2 \u003c\/strong\u003e\u003cstrong\u003eTube Upgrade\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/h1\u003e\n\n\u003ch1 style='margin: 0px 0px 5px; padding: 0px; font-size: 18px; font-weight: 400; line-height: 1.15; color: rgb(0, 0, 0); font-family: Arial, Verdana, \"helvetica neue\", Helvetica, sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;'\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:16px;\"\u003e \u003cspan style='color: rgb(0, 0, 0); font-family: Arial, Verdana, \"helvetica neue\", Helvetica, sans-serif; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;'\u003eThe Little Dot I+ is specifically designed and optimized for driving low impedance headphones that require high current to perform to their full potential. Depending on how the switches are configured, three different families of vacuum tubes can be used (EF95, EF92, and 408A). With two gain settings and DIP switches for vacuum tube rolling, the Little Dot I+ offers versatility and incredible sound quality in a tiny footprint!\u003c\/span\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eLittle Dot I\u003c\/strong\u003e\u003cstrong\u003e+ \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan style='color: rgb(0, 0, 0); font-family: Arial, Verdana, \"helvetica neue\", Helvetica, sans-serif; font-size: 18px;'\u003eWE408A\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003eX2 \u003c\/strong\u003e\u003cstrong\u003eTube Upgrade\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003cspan style=\"font-size:16px;\"\u003eThe Little Dot I+ is a hybrid transistor-vacuum tube headphone amplifier, which combines the smooth, musical sound of tubes with the high output current of transistors. The vacuum tube stage is run in Class-A, the MC33078 operational amplifier (socketed) provides voltage amplification, and BD139\/BD140 transistors serve as output buffers. \u003c\/span\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\n\u003cspan style=\"font-size:20px;\"\u003e\u003cstrong\u003eTECHNICAL SPECIFICATIONS:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cbr\u003e\nInput:Gold-Plated Unbalanced Phono (RCA) Jacks\u003cbr\u003e\nOutput:1\/4\" Gold-Plated Stereo Headphone out\u003cbr\u003e\nTube:6\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:16px;\"\u003eJI\/6CQ6\u003cbr\u003e\nReplace standard tubes with EF92 - additional $20 USD\u003cbr\u003e\nReplace standard tubes with WE408A - additional $50 USD\u003cbr\u003e\nFrequency Response: 10HZ - 50KHz (-3 dB)\u003cbr\u003e\n\u003cstrong\u003eTHD+N:\u003c\/strong\u003e\u003cbr\u003e\n0.2%: 1Vrms @ 1000Hz\u003cbr\u003e\n0.6%: 3Vrms @ 1000Hz\u003cbr\u003e\n1.0%: 5Vrms @ 1000Hz\u003cbr\u003e\nSignal-to-Noise: 92dB\u003cbr\u003e\nSuitable Headphone Impedance: 8 - 600 ohms\u003cbr\u003e\nInput Impedance: 50K ohms\u003cbr\u003e\n\u003cstrong\u003ePower Output:\u003c\/strong\u003e\u003cbr\u003e\n150mW @ 300 ohms\u003cbr\u003e\n300mW @ 120 ohms\u003cbr\u003e\n800mW @ 32 ohms\u003cbr\u003e\nUser variable gain settings: 6.5x or 3.25x\u003cbr\u003e\nPower Consumption: 15VA\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e\u003cbr\u003e\nMetric: 180mm (L) by 97mm (W) by 100mm (H)\u003cbr\u003e\nEnglish: 7.08 inches (L) by 3.81 inches (W) by 3.93 inches (H)\u003cbr\u003e\nWeight: 1.5 kg or 3.3 lbs.\u003cbr\u003e\nAvailable in Black\u003cbr\u003e\nAvailable in either 120VAC or 220VAC\u003c\/span\u003e\u003c\/span\u003e","brand":"LITTLEDOT","offers":[{"title":"6JI \/ 110V","offer_id":45832217559111,"sku":"hrv1789869357061","price":127.99,"currency_code":"USD","in_stock":true},{"title":"6JI \/ 220V","offer_id":45832217591879,"sku":"crk1789869357062","price":97.59,"currency_code":"USD","in_stock":true},{"title":"6CQ6 \/ 110V","offer_id":45832217624647,"sku":"nha1789869357063","price":131.39,"currency_code":"USD","in_stock":true},{"title":"6CQ6 \/ 220V","offer_id":45832217657415,"sku":"eeb1789869357064","price":110.39,"currency_code":"USD","in_stock":true},{"title":"WE408A \/ 110V","offer_id":45832217690183,"sku":"zje1789869357065","price":130.19,"currency_code":"USD","in_stock":true},{"title":"WE408A \/ 220V","offer_id":45832217722951,"sku":"plq1789869357066","price":102.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/8494\/0359\/files\/littledot-i-tube-headphone-amplifier_1.jpg?v=1789869363","url":"https:\/\/kitchencorefit.shop\/products\/littledot-i-tube-headphone-amplifier","provider":"My Store","version":"1.0","type":"link"}