Ok then, Is any one using a good 4 channel amp? I am going to power 4 6x9 polk DBs. I just bought the Infinite 7541A and am not impressed. I hooked up two speakers, front left and right, and it was not loud at all. (my Optimus 170, 85x2 @ 4ohms pounded harder with less distorion, For real.) So anyway Im returning the 7541A tommorow. I still want a four channel amp that is load as heck. the speakers can handle @ 100rms or so , so thats what Im looking for. Preferably someone has an amp and gives advice on it, some ppl just seem to say "get the JL, the PG, the orion," Ya i know they are good amps but unless you have one and can vouch for its sound, please dont reply. Thanks.