That amplifier will work just fine with the RL-p15's. If you use four drivers on that one amp, I'd recommend porting them with 3.1 cu ft of net volume/driver for maximum effect (since it seems you have your sights set for high output), though running all four sealed with the 2400 wrms will still make for a great setup. If you only use two of the 15" drivers, I would keep them sealed, though you could port them so long as you don't run the two ported RL-p's with the full 2400 wrms for hours on end, since that could put too much thermal stress on the voicecoil. If you are a cautious and responsible listener however, you could get away with the two ported 15" RL-p's at 1200 wrms a piece with 2.5 cu ft of net volume/driver... just realize that fried voicecoils are not covered under the warranty. Let me know if you have any other questions. <{POST_SNAPBACK}> You recommend 3.1 cu ft ported per sub . What would you tune the box to .