Not quite the same issue as the other DSP owner. I can get my two main speakers to work 100% if I unhook everything else. Adding the center and rear surrounds make them go dead. I have 8ohm speakers all around and have the rear switch set to support this. Sub will work either way. I have the jumpers in correctly. Tried everything I can in setup. Any ideas'? Also, when doing the speaker test with everything hooked up, it will cycle through and there will be nothing coming from the front main speakers.