Summary: Shut down within minutes... right out of the box. I was running 2 250w 12s in stereo . Had to crank amp up to even hear anything decent and then it clips and shuts down. Powered of and didn't cycle. Checked it the next day worked fine but again after a few minutes shut down. My crown 600 watt has never had a problem and even my cheap crest amp blows this one away @ 450 w. Maybe I just got a lemon.
Excerpt: PQA 3100 Stereo Amp is a great amp for the price. I use it to power up a 16 channel Tascam mixer with two 12 inch Mitchell monitors, Good clean sound for the money. Sounds good and clean when I use it to play Loud music form my phone or other devices.
Summary: My old Radioahack PA amp rated at 250 watts, blows the doors off this Amp. Not loud, no bass. If I could have rated it lower I woulda. Keep your money. But it was super cheap. Get what you pay for.