I have a KBA-75 gold (the original one with the big red power button on the front, not the later platinum). Those jacks are the same. They can be used for bi-amping. I use them to feed the KPA-1 output to a tube amp, so it is easier to switch amps.
To the other poster: I have some other equipment (see my list in my first virtual system), and the KPA-1 and KBA-75 is what I run most of the time. The only thing that comes close IMHO is my Apt pre-amp and amp, driving the same DQ-20
To the other poster: I have some other equipment (see my list in my first virtual system), and the KPA-1 and KBA-75 is what I run most of the time. The only thing that comes close IMHO is my Apt pre-amp and amp, driving the same DQ-20