For my HU im going with an Alpine CDE-133BT. I want to use a 4 channel amp for my front and rear speakers and a mono for the sub. I was looking at the JL JX360/4 and two pairs of Alpine SPS-517's. Any opinions or advice is appreciated and im open to other options like a 5 channel. I want a 4 speaker, one sub and one or two amp setup not top of the line but not something ill have to replace due to cheap quality.