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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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Good
best dac ever used the sound is incredibly good amazing the black colour is currently on top
Love it! My swimming sessions have become much more enjoyable and consistent. I also love listening to audiobooks and retro songs on these when not in water! Good product for a healthy lifestyle
KZ Duonic ka sound sach me bhut acha hai aur iski overall quality kamal ki hai. planar driver hone ki wajah se clarity next level milti hai. Bass tight hai aur instrument separation bhi bohot clear hai. Isme music suno bohot acha experience hota hai . Highly recommended if you love high-resolution audio!
It just works amazing with all of my audio products
These my first iems using it from last 2 months very nice very balanced sound
A beautiful pair of iems at this price range. Balanced sound, but engaging listening. Also good for monitoring.
Really good DAC and perfect for apple devices as it does not reduce the volume like few other DACs..and very good delivery experience from TAS..👍🏻
Various reviews on the net created a lot of desire and interest to possess this iem.
Hitherto iv been buying audio gear from some other website who did not have this iem in stock.
Thought of buying from Audiostore.
I spoke to Mr Pritam and finalised the deal. Personal interactions do add up to the textual.content you gather from the net. Delivery was exactly as promised.
My first impression of the iem is Spectacular sound reproduction!!!
Songs thatIheardliterallyfelt like being played in front of me.
Bass sufficiently good enough for every listener except bassheads. Of course bassheads would lose considerable amount of ther sonic capabilities.
Soundstage wide and imaging is excellent. Inspite of good bass every instrument is distinctly clear and precise.
Only request for Audiostore is to include other leading brands like Fatfreq, Fiio, Ibasso etc.
My honest review these are best and luxury looking IEMS and I love them and they fit in my ear perfectly for me and I love them
This IEM sound really good for everyday listening. The Bass has a nice punch,Vocals come through clear and the overall sound feels balanced and enjoyable.They’re comfortable to wear for long periods and block out a decent amount of outside noise.Easy to carry around as it’s comes with a pouch and Great for Music,Videos.Definitely worth it for the price, and specifically thanks for audiostore team.❤️❤️.
The bass in these stays present and hits quickly. An easy term to describe the feel is cinematic bass. And it get loud very fast recommend use Low gain with high volume or High gain with Low volume. Prefer your your choice.
After 10 days of use, I feel I made a great upgrade from the 7Hz Elua Ultra. The main differences are that the Elua has laid-back vocals and sub-bass rumbling, while the STA Hi-End surpasses those limitations with good imaging, zero distortion at high volumes, and cinematic punch in the sub-bass.
Here is the detail review with help of claude to differentiate the same batch of IEM just at "ONE POINT"
link : https://claude.ai/public/artifacts/c3f98fc2-1929-415d-bc4a-4833928662d5
looks good , Sound is balanced, you can listen music,watch movies and also good for gaming.Bass is good not that much punchy but does not muddy details . No distortion at Max volume .
At first use I have loved the sound and the fit of the iem so far the best budget iem I have ever used go for it guys value for money product.
Excellent experience with TheAudioStore.in!
I ordered the KZ Duonic Tri-Magnet IEM, which was already going out of stock everywhere, and despite multiple courier issues from Blue Dart, the store support team stayed responsive and assisted throughout the process.
Packaging was good, product is genuine, and customer support was polite and helpful during the delay. The delivery issue was mainly from the courier side, not the store.
Finally received the IEM safely and absolutely loving the sound quality. Would definitely recommend TheAudioStore.in for audio enthusiasts and IEM lovers 🎧
