Precision Power i640.5 PPI iON Series 540 Watts Class D 5-Channel Amplifier
I have this hooked up to stock speakers now using stock wiring plus an aftermarket JBL GTO 12\\" subwoofer at 2-ohms.  Source is a Clarion CZ702.  Shortly I'll have Polk dB speakers installed in the car but I figure now is a good time as any to give a quick review of this amp.  The specifications, especially the S/N ratio, aren't spectacular.  Nevertheless, it sounds fine enough and it is indeed tiny.  I don't have any noise or hiss and it reaches clipping with the 5V pre-amp signal from my HU at approximat