Fosi Audio MC331 Tube Integrated Amplifier with DAC, 2 Channel Home Audio Stereo Power Amp for HiFi Bookshelf Speakers/3.5mm Headphones, Vintage VU Meter Preamp with Bluetooth and USB/Opt/Coax/RCA

Price: ₹15,999 - ₹11,505.00
(as of Aug 07, 2026 12:42:59 UTC – Details)

Product Description

Mini Nostalgic Aesthetics Fosi Audio MC331 Hybrid Tube Integrated Amp

Compact size, tube warmth, and remote control: A perfect combination for convenient and cozy audio enjoyment.

All-in-One DAC Amp/Headphone Amp

The MC331 supports one analog and four digital input modes, ensuring compatibility with a broad range of audio sources. It also boasts a pre-out port, facilitating easy setup of a 2.1 system. The VU meter and vacuum tubes add a touch of retro flair,delighting audio enthusiasts with both visual and auditory pleasure

Input: RCA, Bluetooth, USB, Optical, CoaxialOutput: Passive Speakers Output, Pre-Out, 3.5mm Headphone OutputSNR≥100dB; THD≤0.03%; Bluetooth Codecs: SBC, AACPower Supply: 24V 4.5A

Hybrid Tube Integrated Amplifier

With a built-in DAC and versatile connectivity, MC331 offers rich, immersive sound.

Maximize Space Efficiency

Fits into your audio system effortlessly, offering high-quality audio with minimal space.

Catering to Most Audio Sources

Connect multiple audio sources simultaneously and switch inputs seamlessly.

Pointer Dances to the Music

Displays audio signal strength in real time to adjust volume and prevent overload.

JAN 5654W Vacuum Tubes

Compatible tubes: 6AK5, 6AK5W, 6Zh1P, 6J1, 6J1P, WE-403A, 403B, EF95, and other 7-pin tubes.

1 Multifunctional

2 Compact Design

3 Analog/Digital input

4 Visual Dial

5 DIY Tubes

Bass and Treble Control

Customize Your Unique Sound

With central detents to easily restore the natural sound.

Easy to Set up and Intuitive to Operate

Allows for adjusting bass and treble from the comfort of your listening chair.

Memory Function

Setting automatically restore to previous upon restart, eliminating repetitive adjustments.

CNC Integrated Design

All-metal casing, finely sandblasted, featuring a minimalist and durable design.

1 Tone Tuning

2 Remote Control

3 One-click switching

4 Aluminum Alloy chassis

1 Wireless Streaming

2 Desktop Audio

3 Vinyl Experience

4 Home Theater

Can headphones and passive speakers play simultaneously?

The MC331 defaults to headphone output priority. To use speaker output, you need to disconnect the headphones first.

What tube models are compatible for replacement?

The following tube models are compatible: EF95, 6AK5, 6AK5W, 403A/403B, 6J1, 6J1P, 6J2, 6J3, 6J4, 6J5, among others. You can test and choose based on your personal preference.

Precautions for use

When the MC331 plays small classical music, jazz, chorus, solo, vocals, TV, podcasts, etc. at low volume, the tail sound may be cut off, the bass may be automatically muted, or the volume may be unstable. Due to the limitations of the chip architecture, weak signals may not be detected or covered by the background noise, resulting in the loss of some details. It is recommended to increase the volume appropriately to avoid this phenomenon.

All-in-One DAC Amp: 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
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 the appearance but the sound as well, giving the modern look a retro feel
Setup Flexibility: 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 to build various systems
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, making it versatile enough
User-Friendly Design: The MC331 comes with a remote control, allowing you to adjust bass and treble from the comfort of your listening chair. Its replaceable tube design lets you customize the sound signature to suit your personal preferences

Product summary

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