Nty, need the 4 channel. glwsMost SQ amps are expensive, and to get one to produce 100w a channel will be hard. I have a 2 channel old school PPI built Crutchfield from the 90s. Rated at 50x2 and 100x1. I can do 65 shipped on it today since im going to the post office anyways. Pics are in classifieds I can get more if you PM me.