Hey, i just got an audiobahn aw1051t a while ago, all installed at the place and stuff, with a Boss r335 amp. I know better now as ive heard pretty bad things about these cheap boss amps, ive been looking to upgrade my sub and amp. Im getting a single kicker L5 10" dual 2ohm so i can wire it for a 4ohm load to my amp. Does anyone have any suggestions on an amp without going over $130? i was thinking about a rockford fosgate 401S punch, to get quality 400rms @ 4ohms. BTW - whats the difference between the 401S and the 400S? they seem the same to me.. but yeah - any suggestions for other amps?