Fosi Audio MC331 Tube Integrated Bluetooth Amplifier

Fosi Audio MC331 Tube Integrated Bluetooth Amplifier

A DAC, amplifier, preamplifier, and headphone amplifier are all integrated into the Fosi Audio MC331. You can easily switch between audio sources with the help of the remote control, ensuring a seamless and enriched listening experience.

The MC331 really is quite an amazing combination. As an integrated tube DAC amp with a VU meter, the visual aesthetics of the 5654W vacuum tubes and VU meter add a nice warm and soft effect to not only to the appearance but the sound as well, giving the modern look a retro feel.

Setup flexibility is built right in with the MC331. It supports Bluetooth, USB, Coaxial, Optical, and RCA inputs, making it compatible with a variety of sources such as computers, phones, CD players, turntables with built-in phono preamps, etc., allowing you the freedom to build whatever system you have in mind.

Compact yet powerful the MC331 only takes up minimal desktop space but boasts a maximum power output of 105W x2 @ 4Ω, effectively driving your bookshelf speakers. Additionally, it has a pre-out and a 3.5mm headphone output for added versatility.

This user-friendly design comes with a remote control, allowing you to control volume, switch inputs and adjust bass and treble from the comfort of your listening chair. Its replaceable tube design also lets you customize the sound signature to suit your personal preferences.

Why Choose The Fosi Audio MC331?

The Fosi Audio MC331 Tube Integrated Bluetooth Amp is a compact overachiever that punches well above its weight. It rolls a DAC, amplifier, preamp and headphone amp into one tidy unit, then throws in glowing 5654W tubes and a slick VU meter for that mini nostalgic vibe that just looks cool on a desk. Sonically, it blends modern clarity with a hint of tube warmth - not syrupy, just smooth enough to take the edge off - backed by solid numbers like ≥100dB SNR and ≤0.03% THD. With Bluetooth (SBC/AAC), USB, optical, coaxial and RCA inputs, plus pre-out and a 3.5mm headphone jack, it’s ridiculously flexible, happily driving bookshelf speakers with up to 105W x 2 @ 4Ω while letting you tweak bass and treble from the couch via the remote. It’s compact, powerful, and customisable thanks to its swappable tubes - an all-in-one that makes building a small but seriously capable system feel almost too easy.