help with amp......please!!!

Also, just to clarify, it doesn't matter if the rear channels are running 2 ohm/channel, and the fronts are 4 ohm/channel. Also, bass blockers are are mostly simple non-polarized caps , and they don't raise the impedance. He wouldn't need one anyway, since the amp has a HPF.[/QUOTE]

The JL amps only work to their full potential whene the ohm loads are equal b/c of the constant power (or whatever they call it) circuits. They put out the same amount of watts @ any ohm load.

If you're talking about the R.I.P.S., like you said, it makes the same amount of power from 1.5-4ohms, because it has a regulated power supply. It doesn't mean that the front and back speakers have to all be 4ohm speakers, though. If you run 4 ohm speakers in the front, you still get 100w per channel, same thing if you ran 2 ohm speakers, like you said, it doesn't matter the impedance, you still get the same amount of power, therefore running the amp at 2ohms/channel wouldn't get anymore output like it would with conventional amps. If you run 4 ohm in the front, and 2 ohm in the back, the fronts still get 100w per channel, and the back get 25w per channel, the front speaker impedance has no effect on the rear channel output.