Digital 2.1 Amplifier with Pre Out for Additional Amplifiers or Active Speakers!
The Fosi Audio MC351 is an integrated 2.1-channel amplifier with a built-in DAC, designed to deliver high-quality sound across various listening setups. Equipped with two Texas Instruments TPA3255 amplifier chips, the MC351 drives passive speakers and a subwoofer with solid power and minimal distortion. This amplifier supports Bluetooth, USB, optical, coaxial, and RCA inputs, making it highly compatible with modern audio sources.
The MC351’s design features a vintage-inspired VU meter that visually represents the audio signal, enhancing the overall listening experience. With the amplifier’s bass and treble controls, users can fine-tune the audio output to ensure a balanced and natural sound. Additionally, the amplifier boasts a robust metal housing and improved cooling systems, including aluminum alloy heat sinks and side ventilation, to guarantee optimal performance and durability.
The Fosi Audio MC351 suits both professional and private audio applications, offering a versatile and powerful solution to upgrade your audio setup. The combination of advanced features, sturdy construction, and classic design makes it an excellent choice for discerning audiophiles.

Multiple Outputs
Delivers sound to passive speakers, subwoofer, and via a preamplifier output, allowing you to flexibly set up stereo and 2.1 systems.

Automatic Standby Mode
Automatically switches to standby mode after 2 minutes without signal input, saving power and keeping the device in top shape longer.

Quick Switching
Switch easily between input modes with one click, and on restart, settings automatically revert to your last configuration so you don’t have to reset everything.

Two 4700-µF Capacitors
Equipped with high-capacity premium capacitors that enhance sound quality, dynamic range, and stability while extending the amplifier’s lifespan.
Features
- Output Power: 2x 165 Watts + 350 Watts at 4 Ohms
- Impedance: 4 - 8 Ohms
- Inputs: Bluetooth 5.3, RCA, coaxial (RCA), optical, USB
- Outputs: 3x Speaker Out (L/R, Subwoofer), Pre Out (3.5 mm stereo jack)
- Frequency Range: 20 Hz - 20 kHz (±0.1 dB)
- THD: ≤0.03%
- SNR: ≥100 dB
- Device Dimensions: 18.5 x 12.7 x 5.7 cm
- DC Input Range: 24 - 48 V
- Sampling Rate: USB 24 Bit/96 kHz; OPT/COA 32 Bit/192 kHz
- Power Supply: 32 V/5 A, 48 V/5 A
Scope of delivery
- 1 x Fosi Audio MC351 2.1 Amplifier
- 1 x Power Supply
- 1 x USB Cable
- 1 x Optical Cable
Suitable accessories (Not included in the delivery.)
Specification
- Product number 00112772
- Power (Watts) 865
- Outputs 3.5mm Stereo-Klinke, Klemmanschlüsse für Lautsprecher
- Inputs Bluetooth, Cinch (digital), Cinch / RCA, Optisch, USB
- Colour Black
Reviews
Questions about product
No questions have yet been asked about this article.
B-Stock Bargains.
This product is also available in the following condition:
Financing
ConsorsFinanz Finanzierung
- 6 to 72 months term
- 0% financing for 16,66 € per month
- More information on financing
| Operating instructions / manual |
| 3 Year warranty | |
| 30 Day Money Back | |
| Price Match Guarantee | |
| Over 2.000.000 satisfied customers |
The hotline is currently not manned. You can reach us again on Friday, 22.05.2026 at 09:30.
| Friday | 09:30 - 18:00 | |
| Saturday | 09:30 - 13:30 | |
| Monday | Closed |
Different opening times |
| Tuesday | 09:30 - 18:00 | |
| Wednesday | 09:30 - 18:00 | |
| Thursday | 09:30 - 18:00 |







