FAQ:
My signal sounds very stereo enhanced even though I only use a mono input. There is a built-in delay of the right channel 2. Your can adjust it from being fully zero or up to 0.5-0.7 seconds maximum. Middle values create stereo enhance - adjust by taste. Do this by pressing the ‘MODE’ button for 2.5 seconds an then turn the volume knob to set the delay desired.
How to update. Check this video.
Rainbow cable pinout. Side red/brown pair of pins always correspond to -12V similar as with typical gray ribbon cable.