i have 4 infinity kappa speakers and i want an amp to power them at around 85watts rms so would it be better to with a 2 channel and run one for the front and one for the back or a 4 channel amp and have every speakers on its own channel? thanks.
You definitely do not want to run the 2 channel with one to the front and one to the rear. If you do feel like going with that scenario, though, wire one channel to the left and one channel to the right so you still receive proper stereo imaging. The best thing to do however, would be the 4 channel amp as you retain the ability to use the fader.