I think I'm ready to pull the trigger on Dayton Ultimax 18" from Parts Express. I'll be upgrading from my SVS PC2000 and SB2000 (to smooth out the curve). I've got A denon x3500h with Audyssey (Which I actually prefer not to use (just use it for distance etc). I also have REW and Unimik as well as a Mini DSP.\n\nThe crown amp has crossovers so I feel like between the mini DSP and that crossover I could adequately tune the sub. The XLS 1002 has 900wats 4ohm bridged so seems like it would be enough power or do I need more? Should I use a plate amp instead?