This FX-Audio module integrates a PT2313 audio processor from Princeton Technology Corp. This allows volume, bass, treble and balance control for up to 3 different sources for your DIY amplifier modules.
In addition, the chip offers the Loudness functions and the choice of gain by source independently. Comes with a display, an IR receiver, a remote control, a rotary encoder, and a button panel, it proves, once assembled, to be an essential tool to simply control an amplification module.
FYI: The second output is used to power a rear stereo output. The Fader or Balance function does not work.