Really I originally wanted to ask, is the problem on the mixer something I can fix? or is it better to take it to a technician? I am handy on fixing things on my keyboards but I never messed with Sound Equipment (this is my first system).

Also if someone knows exactly what type of equipment I have, can you explain how to hook things up? I want to confirm that the way I did it is the right way and that its not whats causing the mal function in the mixer (even though I doubt that cause certain channels work just fine).

The mixer has AMP A in and AMP B in, and it also has MONITRO OUT AND MAIN OUT L AND R. The POWER AMP (600W) HAS AMP A SPEAKER OUTPUT JACKs (2 quarter inch jacks) and AMP B SPEAKER OUTPUT JACKs. The way I got sound is by taking AMP A OUT (from the AMP) to one of the Speakers (I only operated one speaker to test), then I took AMP B OUT (from the AMP) to the AMP A IN on the mixer. Can someone advise if this is correct? If I want to hook up the other speaker how do I do so? Am I getting full power by doing this? or is this only giving me half the power?

Thanks all