Power Acoustik RZ5-2500D 2100W Class D 5 Channel Amplifier

Pushing 4 Polk dB's, has close than ample clean power to throw around. Only draws aax of 40 amps, but don't let class a/b amp math fool you.. this might not put out "2500 watts" or whatever it claims, but it can rattle the cones on my speakers without any distortion.Small size makes this super easy to hide. Only thing to watch out for is, due to compact size, the power and ground terminals are on top of each other. Depending on install location, you might not be able to get a clear eye on the bottom terimals. Just make sure you don't leave any stray copper hanging out of your terminal and you won't have problems (I also covered the strip with electrical tape just for peace of mind.)HPF is nice, controls on amp are simple and efficient. As with any amp, try not to use your gain as a cheater way of boosting your levels...it seems to me that both the gain and HPF dials aren't exactly a perfect ratio, so the "lower" (left) half of the dial gives a bit more fine-tuning, while the "upper" (right) side seems to step up exponentially.For SQ, all I can say is that it sounds the same as my head unit did, without distorting at all. Prerequisite: this is installed in an old Chevy Tahoe 2 door.. highway ride is decently quiet. doesn't seem to add anything, which is perfect by my book. Puts out clean, full-page sound.Haven't used the sub output as of yet, but if it puts out even the same power as one of the regular channels I'm going to feel fine powering a decent 12" with it.With all that being said, this is by no means going to bust your windows out. If you're looking for competition level SPL, please look elsewhere. If you're looking to triple or quadruple your head unit power, this is for you.

My audio mechanic spent a half an hour trying to install this amp this morning. It came on. It lit up. But there was NO sound. He hooked up his own amp and at the push of a plug, there was quality sound. It's bad enough I waited an entire week for this item which should've been express shipped rather than ground, but for me to go through all of that waiting for a dead amp is dead wrong.

At 3 days I was in my house, opened it, I saw it and connect it easy, now the sound of my car is very good,