I connected a RCA cable from the subwoofer preamp output (Harman Kardon AVR230) to an external amplifier and there is no sound. Actually there is no sound form ANY preamplified output.
This happens only with the pre-amplified outputs, all the other outputs work fine. What am I doing wrong?
is there some kind of seting I have to turn on in the receiver?
Or is it that the pre amp outputs are just not working
Please help HK users