Level Matching?

1st my system consist of Front- 6 1/2 Alpine type S Comp, Rear door Alpine Type S 5 1/4, Rear Deck 6/9 Alpine Type S all running off Alpine Mrv 450(5 ch) Front and rear doors I have parreled together in ch's 1n2,6/9's are in ch 3n4 stereo. Deck Alpine DEH8600Mp, AudioControl Three.1,Sub amp Cadnence ZRS 10, Subs 2 RF T1 12's.   2nd is my problem. I cant seem to get my 6 1/2 or 5 1/4 any louder without causing my components up front to distort Could it be a level matching problem or could it be my speakers are just maxed out. jj

Sorry forgot to put what my settigs are.    Deck i have it at hpf off and turned up to 38 out of 50 flat and no eq boost on, and my Audio Control matched until the overload starts to flicker(causing 3.1 to be main volume knob) so about just under half gain Amp is turned up about not even half or just til I heard distortion. Main question is what could I do to get a lot more volume out of my speakers because right now it is real bass heavy. jj

Do you have any hpf set for your speakers?

Yes on my amp I have it at hp crossed over at 125hz and on my deck at full range. thnx for the quick responce jj

Why do you have your door speakers wired together? That would be giving them 60watts to split between 4 speakers... 15 each? If anything, I would run the fronts off of 1 and 2, then bridge the rear speakers on 3 and 4. Or run fronts off of 1 and 2, 6x9's off 3 and 4, then rear doors off the HU

Could I be just driving my amp into a clipped signal by wiring them like that because of severe underpowering and just turning the volume knob with no headroomjj