350 watt on each 12" high performance sub. I was running a 800 watt Kenwood amp on them w/ no problem and no rattle. Sold the amp to a member on here. I was running that cd. player, the Kenwood amp, and the 2 12's in a mediocre box and it sounded great in my sport compact that I had.

The amp was this exact model that I ran w/ the subs: