{"product_id":"fosi-audio-mc331","title":"Fosi Audio MC331 Tube Integrated Amp — 105W x 2, Built-in DAC, VU Meter","description":"\u003cp class=\"tp-summary\"\u003eThe Fosi Audio MC331 is a hybrid tube integrated amplifier with a built-in DAC, two 5654W tubes and a VU meter, rated up to 105W × 2 @ 4Ω and taking Bluetooth, USB, optical, coaxial and RCA sources. It suits desk or shelf systems with 4–8Ω bookshelf speakers, plus headphones on its 3.5mm output.\u003c\/p\u003e\n\u003ch2\u003eWho the Fosi Audio MC331 is for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBookshelf speakers:\u003c\/strong\u003e Rated up to 105W × 2 @ 4Ω for 4–8Ω speakers, it drives a pair of passive bookshelf speakers from its speaker terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMany sources, one box:\u003c\/strong\u003e Bluetooth, USB, optical, coaxial and RCA inputs cover a computer, phone, TV, CD player or a turntable with a built-in phono preamp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.1 setups:\u003c\/strong\u003e The pre-out connects a powered subwoofer for a 2.1 system, per Fosi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetro desk looks:\u003c\/strong\u003e Two 5654W tubes and a VU meter set the look, and the remote switches inputs and adjusts bass and treble from your chair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkip it if:\u003c\/strong\u003e Your speakers dip below 4Ω or you want aptX or LDAC; Fosi rates the MC331 for 4–8Ω loads and lists SBC and AAC for Bluetooth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFosi Audio MC331 key specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Hybrid tube integrated amplifier with built-in DAC and headphone amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax output power:\u003c\/strong\u003e 105W × 2 @ 4Ω (Fosi max rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e Bluetooth (SBC, AAC), USB, optical, coaxial, RCA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Passive speaker terminals, pre-out, 3.5mm headphone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubes:\u003c\/strong\u003e 2 × 5654W (type may vary by batch); Fosi lists 6AK5, 6AK5W, 6Zh1P, 6J1, EF95 and other 7-pin tubes as compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker impedance:\u003c\/strong\u003e 4–8Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD \/ SNR:\u003c\/strong\u003e ≤0.03% \/ ≥100dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtras:\u003c\/strong\u003e VU meter, remote control, bass and treble with center detents, settings memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 24V\/4.5A adapter included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the box:\u003c\/strong\u003e MC331, 2 vacuum tubes, 2 tube covers, Bluetooth antenna, remote control, 24V\/4.5A power adapter, user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"tp-trust\"\u003eGenuine Fosi Audio stock. Free shipping on every order, 45-day returns.\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":46347586961543,"sku":"Fosi Audio MC331--","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5833\/0247\/files\/12906293456.jpg?v=1793194122","url":"https:\/\/tonepier.com\/products\/fosi-audio-mc331","provider":"TonePier","version":"1.0","type":"link"}