my personal opinion....audiobahn amps arnt worth even looking at to put in a system, now as far as subwoofers go.....they are awesome!!! not like jl 13.5's but they are the best for the price and then some. http://www.betteraudio.com/geolemon/SRT4/ http://www.betteraudio.com/geolemon/SRT4/index2.htm
what amp did you have pushing those subs, cause im having trouble finding a descent amp at a tight budget to push my aw121t's
http://www.sonicelectronix.com/item_8841_Power+Acoustik+OV2-1250.html it was just a quick system for a friend. im sure if i built a proper ported box for them then they really would shine.