I have a 95 Chevy 1500 regular cab pickup and I recently put in 2 10" Alpine Type S 2ohm DVC's running off of a Kicker DX-1000.1 Class D Monoblock wired at 2 Ohm stable.. I also recently replaced my head unit that had 2 pre-outs at 2.5V to a brand new Alpine Digital Media Receiver with 3 pre-outs at 4.0V.. After changing the head unit to one with the higher voltage pre-outs it sounds to me like I have a lot more distortion from the subs even at lower volume and lower gain on the amplifier. Does anyone have any suggestions on other subs in 10" that have a maximum top mount depth of 6 inches that 1- can handle decent wattage. 2- have a long excursion. 3- can take a beating and not have much fear of popping them.. Thank You..