Phantom, about your subs, mate, I don't recommend running 2 TSW306C subbies off a single GM3200T amp. Been there, done that. It wasn't generally too bad when I was just running the 1 sub, but once I whacked the second one on there I had trouble galore. The amp works so hard to power 2 1000W subs off its measly 120W per channel output that your amp will cut in and out (as in you suddenly lose bass for a couple of kicks or so) at any sort of worthwhile volume, because the amp just doesn't have the output power to move the speakers. In fact, I would be willing to bet that you already experience this from time to time with just 1 sub. Well, imagine that, times 10. Thats about what happens with 2 subs. Eventually I blew 1 channel on my amp, and was then left with powering both subs of the single remaining 120W channel. Times cutting-out by another 10 times. That old amp has since been repaired and retired to other less demanding uses. I now run a pair of Pioneer D-Class mono amps (GM-D7400M) for my subs, so each sub gets its own 800W amp. My subs like the power, my amps don't have to do any hard work, and I get to enjoy 1600W of boom in my boot. If you are adamant on sticking with Pioneer, I recommend you grab yourself a couple of these bad boys. Also, once you do have that much wattage, get yourself a capacitor for your amps or you will kill your battery quick-smart. I recommend a Rockford Fosgate or Stinger 1 FARAD capacitor. I personally have a Rockford Fosgate and it works a treat. Good luck with it, mate.