Thanks a lot for the help. I think I will spend that extra 50 and get the more expensive one. Maybe crutchfield will offer some deals on black friday so I'm holding out till then to make any purchases.
Back to the other question though, you were referring to the dual 2 ohm option in your post I'm guessing. Cause to the best of my understanding, if I did the dual 1 in parallel I would be at 0.5 ohms which obviously would not be good. I suppose I could wire the sub in series with the speakers, but that seems like more work than I want to get involved in at the moment. Would you suggest just going with the dual 2 option wired in parallel to the sub (which is stable at a 1 ohm load) for best sound? or does it even really make a huge difference? The amp is rated at 3200 rms at 1 ohm, 2500 at 2, and 1700 at 4, if that helps.