This mono amplification module uses a TPA3255 amplification chip, allowing it to develop a substantial power of 1x140W under 4Ω (1% THD + N) while taking advantage of the high efficiency inherent in its Class D architecture.

It has an integrated filter (cut-off frequency at 95Hz) which is easy toggled using a two-position switch selector. This function allows this module to function as a monophonic amplifier block as well as a sub & bass amplifier block.
When the SUB mode is activated (high position), a small red LED lights up.
For this purpose, it usse an input on a stereo RCA connector in order to sum the two channels when operating in sub amplifier mode.

Three removable stand-mounted NE5532P operational amplifiers provide clear, precise volume control with a rotary potentiometer mounted in front of the PCB.

Its power input has a filtering based on electrolytic capacitors 1200UF / 50V to ensure a robust and steady power supply.