Ridden many miles after replacing the Rockford Power series speakers with Focal 165KRC coaxial, there is simply no comparison. The Rockford 6.5" had weak mid bass response and the tweeters were too harsh. The Focal 6.5" have a good mid bass kick to them, awesome mid range, and perfect tweeter response when the crossover is set to -3 dB. After adding two more Focal in the lower fairings (wired in parallel with the upper fairing speakers), I can cruise down the highway at 80 mph, listening to music like never before. The Focal's bring the Rockford Power series amp to life. My friend, with very loud exhaust, can hear me easily at highway speeds....and he always rides in front of me.
Can't wait to install something in the bags!
So, after everything I have experienced, you can either buy a pre-assembled package from Soundz, or build your own. My recommendation, do not buy the Rockford kit like I did, only purchase the Power series amp and heatsink amp rack with wiring kit. Spare that $299 for speakers and spend that elsewhere on Focal.