Manufacturer | Fosi Audio |
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Language | English |
Item model number | MC351-AU |
Package Dimensions | 35.2 x 23.39 x 9.19 cm; 1 kg |
ASIN | B0CYLV7DZX |
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- IS THIS COVER RIGHT FOR YOU? This insurance has been designed to protect your product against accidental damage and breakdown (not already covered by the seller and/or manufacturer guarantee) for 2 years. For full details, please read the Insurance Product Information Document (IPID) and policy terms using the links provided above.
- COVERAGE AND BENEFITS: Protecting you against the costs of repairing or replacing your product should it suffer accidental damage (e.g. drops, falls, liquids, fire) or electrical or mechanical breakdown. Going above and beyond the seller and/or manufacturer guarantee. With no excess payment to make in the event of a claim.
- CLAIMS PROCESS: Expert repair service at your home or at our repair centre. 98% of claims accepted*. Once your claim has been approved if your product can't be repaired it will either be replaced, or we'll issue an Amazon e-gift card to the value of a replacement. You are entitled to 3 repairs over any 12-month period, all repairs come with a 6-month guarantee. Upon replacement or e-gift card settlement your policy will end. *Assurant monthly performance statistics (avg. Jan-24 to Jun-24).
- RESTRICTIONS: Cover is for UK residents (excluding Channel Islands and Isle of Man) aged 18 years and over. The following is not covered – Theft, loss, cosmetic damage, malicious damage, not taking reasonable care or improper use (as defined in T&Cs), virus or software problems. If you are unable to provide the insured product at point of claim for inspection it will be classed as lost and not covered.
- CANCELLATION: Full refund within 45 days if no claims have been made, thereafter you will receive a partial refund based on how many full unexpired days of cover are remaining minus any claims costs.
- IS THIS COVER RIGHT FOR YOU? This insurance has been designed to protect your product against accidental damage and breakdown (not already covered by the seller and/or manufacturer guarantee) for 3 years. For full details, please read the Insurance Product Information Document (IPID) and policy terms using the links provided above.
- COVERAGE AND BENEFITS: Protecting you against the costs of repairing or replacing your product should it suffer accidental damage (e.g. drops, falls, liquids, fire) or electrical or mechanical breakdown. Going above and beyond the seller and/or manufacturer guarantee. With no excess payment to make in the event of a claim.
- CLAIMS PROCESS: Expert repair service at your home or at our repair centre. 98% of claims accepted*. Once your claim has been approved if your product can't be repaired it will either be replaced, or we'll issue an Amazon e-gift card to the value of a replacement. You are entitled to 3 repairs over any 12-month period, all repairs come with a 6-month guarantee. Upon replacement or e-gift card settlement your policy will end. *Assurant monthly performance statistics (avg. Jan-24 to Jun-24).
- RESTRICTIONS: Cover is for UK residents (excluding Channel Islands and Isle of Man) aged 18 years and over. The following is not covered – Theft, loss, cosmetic damage, malicious damage, not taking reasonable care or improper use (as defined in T&Cs), virus or software problems. If you are unable to provide the insured product at point of claim for inspection it will be classed as lost and not covered.
- CANCELLATION: Full refund within 45 days if no claims have been made, thereafter you will receive a partial refund based on how many full unexpired days of cover are remaining minus any claims costs.
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Fosi Audio MC351 2.1 Channel Integrated Amplifier with DAC, Home Audio Stereo Power Amp with Dual TPA3255 Chips for HiFi Passive Speakers, Vintage VU Meter Receiver with Bluetooth and USB/OPT/COAX
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Purchase options and add-ons
- All-in-One DAC Amplifier: The MC351 integrated amp features high-resolution decoding capabilities, supporting Bluetooth, USB, Optical, and Coaxial digital inputs. With its extensive input and output options, you can easily set up a 2.1 home theater or other stereo HiFi audio systems.
- High Power with Great Sound: Equipped with two high-end Texas Instruments TPA3255 Class-D amplifier chips and a 100-fin heatsink, the MC351 can stably output up to 165W x 2 + 350W power in a 2.1 channel setup. The dual PCBA separated design ensures that the input and output signals do not interfere with each other, providing you with the purest and most impeccable sound quality.
- User-Friendly Control Design: Supports one-touch switching between 5 input modes and includes bass and treble controls, with central detents for tone defeating, for easy sound customization. It also features an automatic standby function, entering standby mode after 2 minutes of no signal input to effectively reduce power consumption.
- Vintage Charm: The eye candy round mini VU meter adds a classic retro vibe to your sound system. The needle of the level meter will dance to the music, providing you with both visual and auditory enjoyment. The MC351 is an excellent companion for turntables, allowing you to relive classic tracks.
- Exquisite Craftsmanship: Featuring an all-aluminum-alloy CNC integrated design and a finely sandblasted metal finish, the MC351 boasts a seamless body with no visible screws, showcasing minimalist aesthetics. The all-metal body ensures durability, and you can enjoy the peace of mind provided by Fosi Audio's 24-month warranty.
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Product Description

Tribute to Classics
MC351 2.1 Channel Integrated Amplifier with VU Meter
Equipped with a built-in DAC, the MC351 supports four types of digital inputs. With outputs of passive subwoofer and pre-out, it allows 2.1 system configuration. The inclusion of a circular VU meter adds a touch of vintage aesthetics, providing audio enthusiasts with visual and auditory pleasure.

All-in-One Multifunctional DAC Amplifier
Fosi Audio is dedicated to "redefining HiFi with unmatched value." Inspired by audiophile feedback, we introduce the MC351, a pioneering power amplifier blending decoding and amplification, catering to diverse HiFi needs. Its classic meter design and dynamic pointer movement evoke nostalgia.
- Input: BT/RCA/OPT/USB/COA; Output: Passive Speakers/Subwoofer/Pre-Out
- Amp Chip: TPA3255×2; THD: ≤0.03%; SNR: ≥100dB
- Max Output Power: 165W×2+350W@4Ω
- Sampling Rates: USB 24bit/96kHz; OPT/COA 32bit/192kHz
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Visual Dial, Pointer Dances to the Music
Real-time signal display helps you adjust the volume to avoid overload and distortion.
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Supports Five Digital/Analog Inputs
Equipped with mainstream inputs Bluetooth/RCA/COA/OPT/USB, compatible with various audio devices.
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Customize Your Unique Sound
With bass & treble knobs featuring central detents for natural sound reproduction.
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Dual Amp Chips for High Power Output
100 aluminum alloy cooling fins improve heat dissipation & sustain high-quality sound performance.
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Enables Switching among Various Audio Sources
Save the hassle of repeatedly plugging and unplugging cables, extending the longevity of devices.
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Effortless Low-Latency, HiFi Audio Sound
Smartphone + MC351 (Bluetooth Input) + Passive Speakers
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Immerse Yourself in a Movie Night
TV + MC351 (OPT/COA Input) + Passive Speakers + Subwoofer
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Upgrade Your Audio Setup
Computer + MC351 (USB Input) + Passive Speakers
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Unveil Vintage Charm
Turntable+ MC351 (RCA Input) + Passive Speakers
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All-Aluminum Alloy Chassis
With precision CNC machined and finely sandblasted, featuring a minimalist and durable design.

Multiple Outputs
Supports outputs for Passive Speakers, Subwoofer, and a Pre-out, enabling flexible setups for both stereo and 2.1 systems.

Automatic Standby
Automatically enters standby mode after 2 minutes of no signal input, effectively reducing energy consumption and extending device lifespan.

Quick Mode Switching
Easily switch input modes with one click, and settings automatically restore to the previous upon restart, eliminating repetitive adjustments.

Dual 4700μF Capacitors
Features high-quality large-capacity capacitors that enhance sound quality, dynamic range, and stability, extending the amplifier's lifespan.
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Customer Reviews
|
4.1 out of 5 stars 74
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4.4 out of 5 stars 319
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4.4 out of 5 stars 1,082
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4.5 out of 5 stars 8,556
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4.6 out of 5 stars 1,817
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4.5 out of 5 stars 844
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4.6 out of 5 stars 586
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Price
| £189.99£189.99 | £99.99£99.99 | £99.99£99.99 | £79.99£79.99 | £109.99£109.99 | £79.99£79.99 | £149.99£149.99 |
Type
| Bluetooth 2.1 CH DAC Amp | Bluetooth 2.0 CH Amp | Bluetooth 2.1 CH Amp | Bluetooth 2.0 CH Amp | Bluetooth 2.0 CH Amp | Bluetooth 2.1 CH Amp | 2.0 CH Amp |
MAX Power Output
| 165W×2+350W | 100W x 2 | 165W × 2+350W | 100W x 2 | 300W x 2 | 160W x 2 | 180W x 2/235W x 1 |
Input
| Bluetooth+RCA+COAX+OPT+USB | Bluetooth 5.3 + RCA | Bluetooth + RCA | Bluetooth + RCA | Bluetooth + RCA | Bluetooth + RCA + U-disk | RCA+XLR+¼”TRS |
Output
| Passive Speakers+Sub+Pre-out | Passive Speakers + Pre-out | Passive/Active Speakers+Sub | Passive Speakers | Passive Speakers + Pre-out | Passive Speakers + Subwoofer | Passive Speakers +Sub-out |
Treble & Bass Control
| ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✘ |
THD
| ≤ 0.03% | ≤ 0.03% | ≤ 0.03% | ≤ 0.04% | ≤ 0.03% | ≤ 0.05% | <0.006% |
SNR
| ≥ 100dB | ≥ 100dB | ≥ 108dB | ≥ 98dB | ≥ 108dB | ≥ 98dB | ≥106dB |
Terminating Impedance
| 4-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm |
Power Adapter
| 32V/5A | 24V/4.5A | 32V/5A | 24V/4.5A | 32V/5A | 24V/4.5A | 48V/5A |
Work Voltage
| AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V |
From the brand

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Discover Fosi Audio - Your HiFi Solution! We're a tech-driven brand, crafting innovative audio products around the world. Our vision: Affordable excellence for each consumer. Our mission: Redefining HiFi with cost-effective innovations. Join Fosi Audio on this unique audio journey!
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Get to know about Fosi Audio
For the past 5 years, we have been designing and developing audio products for real life, aiming to provide a perfect blend of premium acoustic performance with a modern, elegant design.
Why do we love what we do?
We’re not limited by what’s possible now. With a bold vision for the future of audio products, we painstakingly develop advanced technology and innovative research to make it a reality.
Why choose Fosi Audio?
We use meticulous production technology, combined with low-key modern industrial design, to present the sound as clear and pure as flawless crystal.
Compare with similar items
This item ![]() Fosi Audio MC351 2.1 Channel Integrated Amplifier with DAC, Home Audio Stereo Power Amp with Dual TPA3255 Chips for HiFi Passive Speakers, Vintage VU Meter Receiver with Bluetooth and USB/OPT/COAX | Recommendations | ||||
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Price | £189.99£189.99 | £129.99£129.99 | -17% £99.99£99.99 RRP: £119.99 | £179.99£179.99 | £99.99£99.99 |
Delivery | Get it as soon as Tuesday, May 27 | Get it as soon as Tuesday, May 27 | Get it as soon as Tuesday, May 27 | Get it as soon as Tuesday, May 27 | Get it as soon as Wednesday, May 28 |
Customer Ratings | |||||
Sold by | Fosi Audio Factory | Fosi Audio Factory | Fosi Audio Factory | Fosi Audio Factory | Fosi Audio Factory |
brand | Fosi Audio | Fosi Audio | Fosi Audio | Fosi Audio | Fosi Audio |
Product information
Technical Details
Additional Information
Best Sellers Rank | 22,070 in Electronics & Photo (See Top 100 in Electronics & Photo) 87 in Hi-Fi Amplifiers |
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Fosi Audio MC351 2.1 Channel Integrated Amplifier with DAC, Home Audio Stereo Power Amp with Dual TPA3255 Chips for HiFi Passive Speakers, Vintage VU Meter Receiver with Bluetooth and USB/OPT/COAX
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Product details
- Language : English
- Package Dimensions : 35.2 x 23.39 x 9.19 cm; 1 kg
- Date First Available : 21 Mar. 2024
- Manufacturer : Fosi Audio
- ASIN : B0CYLV7DZX
- Item model number : MC351-AU
- Country of origin : China
- Best Sellers Rank: 22,070 in Electronics & Photo (See Top 100 in Electronics & Photo)
- 87 in Hi-Fi Amplifiers
- Customer reviews:
Customer reviews
Customer Reviews, including Product Star Ratings, help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonReviews with images

Wow - Just what I needed and I didn’t know it!
Top reviews from United Kingdom
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- Reviewed in the United Kingdom on 9 January 2025Purchased to use with some Wharfdale 12.1 speakers in my study. Sits on my desktop, playing music from the PC via optical and from my iPhone via Bluetooth. I'm no audiophile, but for the price, this sounds wonderful to me. I tried the Fosi MC331 first (I liked the look of the valves). However that suffered from strange cutting to silence in quiet sections of music - so returned. This is brilliant in comparison though.
- Reviewed in the United Kingdom on 5 May 2025Looks great. Amazing functionality as I use this for my ps5, Spotify over bluetooth and vinyl.
I have paired with a high quality pre amp and that makes all the difference.
- Reviewed in the United Kingdom on 31 August 2024So small and cute looking, even my wife likes it. Great power to drive my needy M&K 4ohm K17s in bookshelf set up in my garden room. TV source uses the optical in, Bluetooth in for kids and family tablets etc. I use the OTG usb input from iPhone/Amazon music which gets best out of Fossi DAC. Not used RCA yet, but have a feeling my record deck may be moving soon. So happy with back to basic switching between sources, the tactile treble & bass tone controls and larger volume wheel. The VU display is the icing on the retro cake. Not used .1 yet, but I do have a simple vintage M&K K10 sitting in garage waiting to be used as active sub for the mini jack output. (Ignore the Devialet soundbox in pics - which is soon to be in the garage). Thank you Fossi. Will add update report after medium/long-term use.
5.0 out of 5 starsSo small and cute looking, even my wife likes it. Great power to drive my needy M&K 4ohm K17s in bookshelf set up in my garden room. TV source uses the optical in, Bluetooth in for kids and family tablets etc. I use the OTG usb input from iPhone/Amazon music which gets best out of Fossi DAC. Not used RCA yet, but have a feeling my record deck may be moving soon. So happy with back to basic switching between sources, the tactile treble & bass tone controls and larger volume wheel. The VU display is the icing on the retro cake. Not used .1 yet, but I do have a simple vintage M&K K10 sitting in garage waiting to be used as active sub for the mini jack output. (Ignore the Devialet soundbox in pics - which is soon to be in the garage). Thank you Fossi. Will add update report after medium/long-term use.Wow - Just what I needed and I didn’t know it!
Reviewed in the United Kingdom on 31 August 2024
Images in this review
- Reviewed in the United Kingdom on 7 January 2025Used this, in conjunction with the Fosi audio box2 pre amp to power a Technics record deck and a pair of 1980's KEF speakers, I was using a vintage amp which died, the sound quality has improved and I can link up my computer and phone via blue tooth for streaming music.
- Reviewed in the United Kingdom on 30 September 2024I REALLY REALLY wanted to love this product because i think it looks the best by far for sub £200. But the right channel has intermittent crackling, it would come and go.
I did a process of elimination to rule out speaker or wires and after doing that it turns out it was the AMP. What a shame. I have ordered another one, but if this one has any issues then i have lost massive faith.
Top reviews from other countries
- Santiago leon fernandezReviewed in the United States on 6 May 2025
5.0 out of 5 stars Perfect
Best small amp I ever had, I'veen using it for couple months now and is just amazing. Can move my 6 speakers setup plus 12 inch subwoofer with absolute no problem and sound clear, love the brand love the product
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Jack 72Reviewed in France on 29 January 2025
5.0 out of 5 stars Parfait
Petit ampli efficace et bien équipé (Bluetooth, wifi)
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lenkabujwidReviewed in Poland on 22 January 2025
5.0 out of 5 stars OK
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Nie to nie jest ten dzwiek choc jest nawet calkiem blisko panowie
DAC tego fosi audio MC351 nie jest tak muzykalny czy analityczny jak AKM czy ESS i tu widze wade tego wzmacniacza...
Dokupiono extra zasilacz 48V 5A ale nie dalo to zadnych extra muzycznych efektow w porownaniu do 32V dostepnego oryginalnie w pudelku.
Muzyka poprzez BT z iphone nie jest tak wyrazna jak z CD ale nie ma co narzekac bo w tej cenie to calkiem dobra oferta.
Jesli ktos ma niezlej klasy stare kolumny ktore kurzyly sie na strychu to mozna brac spokojnie MC351 bo spelni swoja role.
Elegancka obudowa i bardzo dobra jakosc wykonania ale pozbawiona otworow wentylacyjnych czy malego wiatraka...
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Czekam z niecierpliwoscia na nowa wersje tego modelu z lepszym DAC na pokladzie bo sam projekt jest trafiony ale jak to zawsze bywa troche niedopracowany w pierwszej wersji chipset...
apdejt: dokupiono zewnetrzny DAC od fosi model ZD3 i jest lepiej ale plyty CD zagraly zauwazalnie piekniej dopiero po podlaczeniu transportu sony x800 m2 poprzez coax ,prosze zwrocic uwage ze ten sony to dzis najtansza opcja na SACD w amazon
- Zoran BolevichReviewed in Australia on 14 September 2024
3.0 out of 5 stars A solid low-budget option to enhance TV sound and play music from a Bluetooth device
A small device, in a quality metal case, with good basic functionality and decent sound reproduction. Lacking wifi connectivity, so no app to control it. Also, no remote control. Synchronizing your TV signal with the digital audio output (when using a USB connection from the TV) can be a challenge, leading to mismatch between video and audio (i.e. an obvious sound lag).
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Michael R.Reviewed in Germany on 18 April 2025
5.0 out of 5 stars Kaufempfehlung
Der kleine hat ordentlich Dampf. Aber nicht nur das, der Klang ist sehr sauber und fein. Bin absolut begeistert.