I'd go with the AB for sure... Crescendo is ok in my opinion. You can't go wrong with AB. I believe it's rated: 1 x 4700W @ 1 ohm on 12 volts. That should be perfect for your 10's.hey guys are the Crescendo amps good, i'm looking at the 3500, and i'm also looking at th AB VFL500.1, got 3 10's 1500rms each....