1. Original source is out of our computer running into channel one on the board. What Board is this? Is it a Stereo input with stereo output?
2. This source is then run out of the Main output on the board, Is this a stereo output or switched mono? which is split by 1/4 inch Y connectors. Is this a pair or one Y connector? One split signal runs to the powered speakers (which work fine) and the other runs into the sub amp.
3. We run the signal coming into the sub amp out to the sub using the regular banana clip to 1/4 XLR connector on the sub You are sending full range to a sub amp. Sub amps perform better with dedicated sub signals, that is the signal you want to amplify. How and where are you summing the bass signals for your one sub?
4. We then run the wireless mic outputs from the amp into the board (channels 2 and 3) and out to the powered speakers.
We are getting complete output (mics and music) to the powered speakers out of the board, but getting nothing to the sub out of the amp.
I know it is not the output on the amp because we hooked up just a regular pair of book shelf speakers eric had lying around to it and it worked fine with them. For some reason, there is no signal going to the sub.