im running my sr124-dvc with a zapco c2k-3.0 putting 660w @ 2 ohms. i think i need more power. i got a good deal on a massive audio p1500.1 putting 950w @ 2 ohms. its a d class amp. how is the sound quality with class d amps compared to class ab? i know polk makes class d amps so i guess they should be alright. i heard some good things about massive, has anyone else heard anything about them?