Hi, I just got this Pyle PDA77BU 4 channel audio amplifier, I need to connect 4 speakers(no subwoofer), the user manual lack on how to connect the speakers, here is in the back , each channel has the own volume control know at front [ATTACH=full]1475[/ATTACH] so here are some of the possible combinations; L-A and L-B or L-A and R-C or other combinations. which could be the ideal combination to have the best sound ?, any ideas or suggestions will be greatly appreciated, Thanks