Question for you audio guru's. So I plan on adding more speakers to my system. I have a set biketronics Titan II's in the fairing and a set of Polk Audio DB691's in my saddlebag lids powered by 2 RF PBR 300X2's. I want to add 2 more 6.5's in the fairing and plan on adding fairing lowers with 6.5's in them. I also have an Alpine PDX F6 laying around and I was wondering if I should just stay with the 2 RF PBR's and run the speakers in parallel? or would it be better to run everything off of the Alpine PDX?