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Description
🎧 Fosi Audio MC331 – 2.1 Channel Tube Integrated Bluetooth Amplifier with DAC & VU Meter
Retro Charm, Modern Versatility.
Experience the perfect fusion of nostalgic aesthetics and modern audio performance with the Fosi Audio MC331. This hybrid tube integrated amplifier combines the rich warmth of JAN 5654W vacuum tubes with an all-in-one design featuring a built-in DAC, Bluetooth connectivity, and a classic VU meter that moves with your music.
Whether you're an audiophile seeking tube warmth or a casual listener who loves convenience, the MC331 offers immersive sound in a space-saving format that fits beautifully into any desktop or home setup.
🔊 Key Features:
🎵 Hybrid Tube Amplification with Built-in DAC
Enjoy rich, lifelike sound from your favorite sources thanks to premium JAN 5654W tubes and a powerful digital-to-analog converter. Compatible with various 7-pin tube types to tailor your sound signature.
📡 Multiple Inputs, Maximum Compatibility
Connect effortlessly with Bluetooth, USB, Optical, Coaxial, and RCA inputs. Switch seamlessly between devices like PCs, phones, turntables (with phono preamp), and CD players.
🎚️ VU Meter & Vintage Aesthetic
The moving needle VU meter isn’t just for show—it provides real-time signal feedback while adding visual flair. Paired with glowing vacuum tubes, it brings timeless analog character to your modern setup.
🎧 Headphone Amp & 2.1 Pre-Out Support
Use the 3.5mm headphone output for private listening or connect a subwoofer via the pre-out for a full 2.1-channel system. Drives bookshelf speakers effortlessly with 105W x 2 @ 4Ω output.
🛋️ Remote-Controlled Convenience
Control bass, treble, volume, and input source without leaving your seat. The memory function ensures your settings are saved on every restart.
💼 Compact CNC Aluminum Design
Built with a finely sandblasted, all-metal chassis, the MC331 offers durability and premium feel, all in a compact footprint.
📦 Technical Specifications:
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Inputs: RCA, Bluetooth (SBC/AAC), USB, Optical, Coaxial
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Outputs: Passive Speaker Terminals, 3.5mm Headphone Out, Pre-Out
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SNR: ≥100dB | THD: ≤0.03%
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Tube Type: JAN 5654W (replaceable with EF95, 6J1, WE-403A, etc.)
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Power Output: 105W x 2 @ 4Ω
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Control: Physical knobs + remote control
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Dimensions: Compact, desktop-friendly form factor
🔌 Why Choose the Fosi Audio MC331?
For audiophiles who appreciate the nostalgic touch of tubes but demand modern digital flexibility, the MC331 delivers on all fronts: impeccable sound, classic design, and unmatched connectivity.
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OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
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TRUSTED BY OVER 40K+ MUSIC ENTHUSIAST
Let customers speak for us
It's truly velvetty- If I can say so. Good for IEM's with large nozzles .
Delivery on time, Good product, Happy to purchase overall
I own a Simgot ET142. Wanted a pure planar and my choices were the Letshouer S12Pro , 7Hz Timeless and the Sivga Nightingale.
The Sivga isn’t available in India.
The Letshouer reviews had me confused between the S12 and its upgrade the S15.
The 7Hz was a notch lower compared to the Letshouers.
Finally I decided to pitch in for the S15 considering that the audio store has a sale on it and the pricewas better than that offered on HPZ and Conceptkart and Desertkart.
I am happy with my gamble.
Bass , Mids and treble are all aligned perfectly to my preferences. A mild V shaped profile. Rich warm bass and smooth trebles without harshness.
Thank you Audio store.
Pre-ordered the Top pro and received it in a week.
IEM is Excellent
The bass is there, doesn't overwhelm but when it hits you can feel in the chest
Treble is the smoothest I've heard
Vocals are clean
Seperation is top notch
Worth.
The sound is fucking great for the price….the voices rock..bass is not over justified….balanced and provides according to track,one downside because of which I’m rating 4..is the fit…hurts my ears even after 1 hr….might adjust to different ear shapes of diff ppl..overall satisfied for the money….if u skip bass….it kills the market opponents like realme air 7 pro and one plus buds 4 also one more thing ..the case feels a bit cheap…and might get scratched ez..and since it’s quite uncommon set of buds…u don’t get any protective cases as such
TANCHJIM Bunny has an excellent sound signature to start with - clean, energetic and fun it works beautifully with jazz, R&B, hip-hop and even bollywood music. But it's possibilities just start there. Once you connect these IEMs to your phone and download the Tanchjim app, you would discover a ton of sound profiles pre-saved. There are 4-5 official sound signatures, but even more are the access to thousands of fan created sound signatures. You can tune it to any of the hundreds of IEMs available - everyday a new IEM, if you like. The play opportunities are endless. The build could be better - looks kind of cheap compared to the solid metal body of the Chu 2, but no complaints as far as sound goes.
Exceptional delivery by theaudiostore.
The packaging was really well done.
The Bunnys blew my mind when I first used it, it sounds so much clear than my Airpods Pros!
Anyone getting their first IEMs go for this!
The build quality is sturdy & good. The new design is nice. Work well without any hissing noise or heating. Using it on my CMF Phone 1 🙌✨
Adequate purchase, best sound you will hear.
Probably double volume than TWS.
Looks seriously different than other headphones I have used till now, you look different than rest of the crowd(in the gym especially), that makes you feel special 😊☺️
Must go for it Bluetooth & DAC AMP
- Audiocular SPARK DAC is one of the best looking dongle DAC I can find also the audio quality it throws it's just supirior to any normal phone or pc DAC.
-Well there is lot of DAC with same configuration but on higher price this one feels premium and it's just under 1000 bucks so I don't think so you need anything else as a beginner or anywhere for regular use it's best of best.
- I was really confused between salnotes zero 2 and moondrops chu 2. After lot of thinking and chatgpt decided to go for Chu 2 well my initial experience was not good because I was using realme airbuds 5 pro which is a great wireless earphone dual drivers but mostly bass heavy so chu 2 bass felt lacking at start but it's just initial expression once I got comfortable with it is blown my mind cause it's really well balanced you can hear good amount of sound seperation bass is good and don't leak into the other instrument details or vocals.
- I purchased it with audiocular spark DAC
And honestly it's deadly combo it improves so much sound quality and bass and on top of that the fit of chu 2 and cable is really good and with this DAC it feels aesthetically pleasing as well.
Awesome Product...
Awesome headset
