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FOSI MC351 Class D Amplifier
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Accessories for this product
Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
Fosi MC351 Class D Amplifier 2.1 Channel Bluetooth 5.3 2xTPA3255 2x165W+350W @ 4 ohm
The Fosi Audio MC351 integrated amplifier is a small all-in-one amplifier featuring two TI TPA3255 amplifier chips, enabling it to deliver up to 2x165W+350W of power at 4 ohms. This makes it possible to set up a 2.1-channel system for an immersive listening or TV experience with deep bass. A built-in DAC gives it the benefit of digital and optical inputs such as a USB-C input (24bit/96kHz), a Toslink optical input and a coaxial SPDIF input (24bit 192kHz). Digital inputs are complemented by Bluetooth 5.3 functionality supporting standard SBC and AAC codecs, as well as an analog RCA stereo input. The front panel features three potentiometers for volume, bass and treble control, as well as a small round Vumeter for an aesthetically pleasing vintage effect. A button also makes it easy to select the desired input source. A 32V/5A power supply completes the package.
The 32V/5A power supply supplied cannot match the MC351's power claims. A 48V/5A power supply (sold separately) is required.
Fosi MC351: a considerable power reserve
The MC351's two TI TPA3255 amplifier chips enable it to develop an output power of up to 2x165W at 4 ohms on its speaker terminals, and 350W at 4 ohms on its subwoofer output. One of the MC351's major advantages lies in its ability to offer this level of power and a subwoofer output on terminals. All this while maintaining a THD ≤ 0.03% and an SNR ≥ 100dB.
Fosi MC351: integrated DAC
The integration of a DAC chip in the MC351 allows it to benefit from several digital and optical inputs in addition to its analog RCA input. This DAC chip supports sampling rates up to PCM 24bit 96kHz on its USB input and 24bit 192kHz on its Toslink optical input and coaxial SPDIF input.
Fosi MC351: Bluetooth 5.3
The MC351 benefits from Bluetooth reception, and supports standard SBC and AAC codecs. A valuable feature for quick and easy use with a smartphone or tablet, for example. The Bluetooth 5.3 standard guarantees low-latency wireless transmission.
Fosi MC351: a clean power supply
Two 4700μF capacitors guarantee a stable power supply to the MC531's circuits. This not only improves the final sound reproduction, but also enhances the MC351's durability.
Fosi MC351: a complete interface
| 1 | Bluetooth antenna |
| 2 | Vumeter |
| 3 | Input indication LED |
| 4 | Source selector |
| 5 | Treble control |
| 6 | Bass control |
| 7 | Volume control |
| 8 | Pre-out jack 3.5mm |
| 9 | Bluetooth antenna connector |
| 10 | Stereo RCA input |
| 11 | Coaxial input |
| 12 | Toslink optical input |
| 13 | USB-C input |
| 14 | Right channel output on speaker terminal block |
| 15 | Left channel output on speaker terminal block |
| 16 | Passive subwoofer output on terminal block |
| 17 | 24-48V DC power supply |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Integrated amplifier |
| Amplification type | Class D |
| Channel | 2.1 channel |
| Amplification chip | TI TPA3255 |
| Inputs | 1x RCA analog stereo 1x USB-C 1x SPDIF coaxial 1x Optical Toslink Bluetooth |
| Outputs | Speaker terminals 1x Passive subwoofer output on terminal block 1x Pre-out on 3.5mm jack |
| Output power | 2x 165W @ 4 ohm |
| Subwoofer output power | 350W @ 4 ohm |
| Subwoofer output frequency | 20Hz-250Hz |
| Termination impedance | 4-8 ohm |
| Frequency response | 20Hz-20KHz (±0.1dB) |
| THD | ≤0.03% |
| SNR | ≥100dB |
| Supported sample rates | USB: 24bit/96kHz Toslink optical and SPDIF coaxial: 24bit/192kHz |
| Bluetooth standard | Bluetooth 5.3 |
| Suppported Bluetooth codecs | SBC et AAC |
| Bluetooth range | 10m obstacle-free |
| Tone control | Bass and treble |
| General | |
|---|---|
| Power supply | 24/48V DC (32V 5A supplied) |
| Dimensions | 330.6 x 228.6 x 76.2mm |
| Color | Gray |
| Package | 1x Fosi Audio MC351 amplifier 1x Bluetooth antenna 1x USB-A to USB-C cable 1x Toslink optical cable 1x 32V 5A DC power adapter |
| Input | Optical |
| Input | USB |
| Input | SPDIF |
| Input | Bluetooth |
| Input | RCA |
| Output | Speaker terminal |
| Output | Subwoofer |
| Output | Jack 3.5mm |
| Color | Gray |
| Channel | 2.1 |
| Class | Class D / T |
| Amplifier chip | TPA3255 |
| Power (W) | 350.0 |
| Power (W) | 165.0 |
| Remote Control | No |
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