Ya, the PDX were suggested on another forum, but the PDX 5 only puts out 300 watts on the bass channel and I'd like to run a bit more power to my sub (my nine.1 was doing 900 wrms @ 2 ohms). If I was gonna get a PDX I'd look at the M6 which does 600 @ 2 ohm, but for that price point wouldn't it...