Hi here's what my current setup I will be installing this weekend.
Cadence Z4000 75 X 4 RMS (Running Cadence ZX-651 / ZX-691)
Cadence Z9000 800 X 1 RMS (Running 1 Polk MOMO MM124)
Cadence Q2000 60 X 2 RMS (Running Cadence CT75)
Rockford Fosgate RFX9300 Head Unit (5V)
Here's my question, how do I adjust the settings on my Z4000 for my fronts and rears? Also need to know how to adjust settings for Q2000 for tweeters? Also I am also thinking of going with Polk MOMO MM6 components and MMC690, do you guy's think it will be a big difference in sound quality? Is it really worth it to change out money wise? Thanks for any help possible.