did you already buy the JL amps? i would go with the zapco reference series, better amp for the money hands down. price isnt bad compared to the JL's. other than that, it sounds like a good setup. that is a good deck too. as long as its working fine, i wouldnt change it, nothing out there is worth changing to. the only other thing i would do if it was my system is run an external EQ. if you decide on doing one, the zapco's are the best one i have come across, around 300 bucks. if you change your mind on those amps too, you can run symbilink cables from that EQ to the zapco amps. 16 volts.