If they are the older ones they are damn decent. I have an 04 p8002, good amp but I knew nothing about ohms loads/impedence when I was using it. Suffice to say they get very hot and tend to go into protect mode when bridged @ 1 ohm...
But they will beat the crap out of most '800-watt' amps on the market today. Prolly benches closer to 1000.