Its ok. Look at a jl audio 500/1. Dont run a 4 channel sub to 2 subs. 4 channel is meant for speakers not subs. I reccommend a 500/1 most of all for 2 350 subs. It will drop like no tomorro. Even tho its underpowering a lil, the 500/1 is the most pure 500 watts ive ever heard. (I own one myself) .