{"product_id":"fosi-audio-gr70-tube-headphone-amp","title":"Fosi Audio GR70 Tube Headphone Amp","description":"\u003cp data-start=\"216\" data-end=\"291\"\u003e\u003cstrong data-start=\"216\" data-end=\"289\"\u003eFosi Audio GR70 Tube Headphone Amp – Vintage Warmth, Modern Precision\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"293\" data-end=\"619\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/25h9wNq66Ic?si=M2O8b7_tu2XRil4o\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp data-start=\"293\" data-end=\"619\"\u003eThe \u003cstrong data-start=\"297\" data-end=\"316\"\u003eFosi Audio GR70\u003c\/strong\u003e is a premium \u003cstrong data-start=\"330\" data-end=\"374\"\u003equad-tube headphone amplifier and preamp\u003c\/strong\u003e that blends the classic charm of vacuum tube audio with the precision of modern engineering. Featuring \u003cstrong data-start=\"478\" data-end=\"528\"\u003etwo 5654W and two 6Ж4 replaceable vacuum tubes\u003c\/strong\u003e, it delivers a rich, warm, and immersive listening experience that brings music to life.\u003c\/p\u003e\n\u003cp data-start=\"621\" data-end=\"936\"\u003eIts \u003cstrong data-start=\"625\" data-end=\"653\"\u003edual-stage amplification\u003c\/strong\u003e ensures exceptional clarity and tonal depth—5654W tubes boost voltage for smooth mids and highs, while 6Ж4 tubes handle power amplification for dynamic, textured bass. Whether you’re pairing with \u003cstrong data-start=\"850\" data-end=\"903\"\u003eover-ear headphones, IEMs, or a full Hi-Fi system\u003c\/strong\u003e, the GR70 adapts effortlessly.\u003c\/p\u003e\n\u003cp data-start=\"938\" data-end=\"1275\"\u003eWith \u003cstrong data-start=\"943\" data-end=\"986\"\u003elow and high impedance modes (16Ω–300Ω)\u003c\/strong\u003e, \u003cstrong data-start=\"988\" data-end=\"1035\"\u003emultiple headphone outputs (6.35mm \u0026amp; 3.5mm)\u003c\/strong\u003e, and \u003cstrong data-start=\"1041\" data-end=\"1086\"\u003eRCA input\/output for preamp functionality\u003c\/strong\u003e, the GR70 fits seamlessly into any audio setup. The \u003cstrong data-start=\"1139\" data-end=\"1172\"\u003elarge top-mounted volume knob\u003c\/strong\u003e, \u003cstrong data-start=\"1174\" data-end=\"1205\"\u003ebass \u0026amp; treble tone controls\u003c\/strong\u003e, and \u003cstrong data-start=\"1211\" data-end=\"1236\"\u003edual-side ventilation\u003c\/strong\u003e make it both functional and stylish.\u003c\/p\u003e\n\u003cp data-start=\"1277\" data-end=\"1598\"\u003eBuilt from \u003cstrong data-start=\"1288\" data-end=\"1319\"\u003eCNC-machined aluminum alloy\u003c\/strong\u003e, this compact yet powerful amp outputs up to \u003cstrong data-start=\"1365\" data-end=\"1380\"\u003e300mW @ 32Ω\u003c\/strong\u003e, offering a \u003cstrong data-start=\"1393\" data-end=\"1424\"\u003esignal-to-noise ratio ≥97dB\u003c\/strong\u003e for clean, distortion-free sound. The \u003cstrong data-start=\"1463\" data-end=\"1482\"\u003eFosi Audio GR70\u003c\/strong\u003e is the perfect choice for audiophiles seeking \u003cstrong data-start=\"1529\" data-end=\"1554\"\u003eauthentic tube warmth\u003c\/strong\u003e without compromising detail or precision.\u003c\/p\u003e\n\u003ch2 data-start=\"1792\" data-end=\"1815\"\u003e\u003cstrong data-start=\"1795\" data-end=\"1813\"\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1817\" data-end=\"2419\"\u003e\u003cstrong data-start=\"1817\" data-end=\"1827\"\u003eModel:\u003c\/strong\u003e Fosi Audio GR70\u003cbr data-start=\"1843\" data-end=\"1846\"\u003e\u003cstrong data-start=\"1846\" data-end=\"1855\"\u003eType:\u003c\/strong\u003e Tube Headphone Amplifier \u0026amp; Preamp\u003cbr data-start=\"1889\" data-end=\"1892\"\u003e\u003cstrong data-start=\"1892\" data-end=\"1902\"\u003eTubes:\u003c\/strong\u003e 2 × 5654W, 2 × 6Ж4 (replaceable)\u003cbr data-start=\"1935\" data-end=\"1938\"\u003e\u003cstrong data-start=\"1938\" data-end=\"1948\"\u003eInput:\u003c\/strong\u003e RCA\u003cbr data-start=\"1952\" data-end=\"1955\"\u003e\u003cstrong data-start=\"1955\" data-end=\"1967\"\u003eOutputs:\u003c\/strong\u003e RCA, 6.35mm, 3.5mm headphone jacks\u003cbr data-start=\"2002\" data-end=\"2005\"\u003e\u003cstrong data-start=\"2005\" data-end=\"2026\"\u003eMax Power Output:\u003c\/strong\u003e 300mW @ 32Ω\u003cbr data-start=\"2038\" data-end=\"2041\"\u003e\u003cstrong data-start=\"2041\" data-end=\"2057\"\u003ePower Input:\u003c\/strong\u003e DC 12V\/3A\u003cbr data-start=\"2067\" data-end=\"2070\"\u003e\u003cstrong data-start=\"2070\" data-end=\"2094\"\u003eHeadphone Impedance:\u003c\/strong\u003e\u003cbr data-start=\"2094\" data-end=\"2097\"\u003e• Low Mode: 16Ω–120Ω\u003cbr data-start=\"2117\" data-end=\"2120\"\u003e• High Mode: 120Ω–300Ω\u003cbr data-start=\"2142\" data-end=\"2145\"\u003e\u003cstrong data-start=\"2145\" data-end=\"2170\"\u003eOutput Voltage (RCA):\u003c\/strong\u003e 1.2V\u003cbr data-start=\"2175\" data-end=\"2178\"\u003e\u003cstrong data-start=\"2178\" data-end=\"2186\"\u003eSNR:\u003c\/strong\u003e ≥97dB\u003cbr data-start=\"2192\" data-end=\"2195\"\u003e\u003cstrong data-start=\"2195\" data-end=\"2208\"\u003eControls:\u003c\/strong\u003e Volume knob, bass \u0026amp; treble tone controls, high\/low impedance switch\u003cbr data-start=\"2276\" data-end=\"2279\"\u003e\u003cstrong data-start=\"2279\" data-end=\"2297\"\u003eBody Material:\u003c\/strong\u003e CNC-machined aluminum alloy\u003cbr data-start=\"2325\" data-end=\"2328\"\u003e\u003cstrong data-start=\"2328\" data-end=\"2348\"\u003eDesign Features:\u003c\/strong\u003e Dual-stage amplification, dual-side ventilation, compact form factor\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":58936964612256,"sku":"wby1789822278913","price":128.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1045\/5833\/0016\/files\/fosi-audio-gr70-tube-headphone-amp_1.jpg?v=1789822285","url":"https:\/\/boardroomwear.shop\/products\/fosi-audio-gr70-tube-headphone-amp","provider":"My Store","version":"1.0","type":"link"}