Fosi Audio M03
Fosi Audio M03
Fosi Audio M03

Fosi Audio M03: Affordable, Compact, and Powerful Mono Amplifier

The Fosi Audio M03 Mono Amplifier is an affordable, compact, and powerful compact unit. It is equipped with a TI TPA3255D2 amplifier chip that delivers 120W of power into 4 ohms. It has two operating modes that can be selected using a switch on the front panel. The “PBTL” mode allows you to power a passive mono speaker and an active subwoofer, and the “SUB” mode allows you to power a passive or active subwoofer.

The front panel also has a potentiometer for volume control and a second potentiometer for the subwoofer’s 20-300 Hz low-pass filter. This low pass filter only works in “SUB” mode with a passive subwoofer. Simple and effective, this subwoofer amplifier will allow you to drive a large number of subwoofers available on the market. The delivery set includes a 32V DC 5A power supply.

Fosi Audio M03

Fosi Audio decided to integrate the TI TPA3255D2 amplifier chip into its M03 amplifier. This Texas Instrument IC is a Class D power amplifier IC featuring PurePath™ UltraHD technology for low distortion across the entire audio range and superior sound quality.

Fosi Audio M03

Fosi Audio M03 specifications:

  • Product Type: Mono Amplifier + Subwoofer
  • Amplification chip: TI TPA3255D2
  • Input: 1x RCA input
  • Output: 1x subwoofer output/1x speaker terminal
  • Output power: 120W
  • End impedance: 4-8Ω
  • Input sensitivity: ≤ 0.2mV
  • Frequency response: 20Hz-20KHz (±3dB)
  • Bass Range: 20-200Hz
  • Cutoff frequency: 20 – 300 Hz
  • THD: ≤ 0.03%
  • SNR: ≥ 106 dB
  • Bass cutoff frequency adjustment: 20-300 Hz
  • Power range: 24-36V DC (32V 5A power supply included)
  • Net weight: 1kg
  • Dimensions: 130 x 115 x 35 mm
  • Black color