Alright how bout this..I was looking at a wiring diagram and saw that 3x 4ohm dvc type Rs on a mono amp would be at 2.7ohmload..but on a 4 channel amp they would each be at a 2 ohm load..so i found a hifonics crunch p1800x4 amp..which puts 450w rms at 2 ohm to 4 subs..so should be a little higher for 3 right? So would this be good to get? Also..one of the type Rs is a old style..rated at 300rmsbut i was told is way underrated..so i guess putting 400+ watts to it would be safe? the other 2 are new style at 500rms.