If you listen to real music (not rap) that involves vocals and instruments, the goal is to reproduce it like it's happening on the dashboard in front of you. Any rear fill should be subtly felt but not heard. What you have in the rear is akin to going to a live concert, turning to face away from the stage, then lying flat on your face facing in the opposite direction. Excessive highs are probably caused because you have too many of the most directional frequencies your speakers are producing coming from everywhere all around you at once and getting to you before the rest of the frequency range arrives. Mounting stuff on the rear tray firing at the roof or rear windshield is also probably causing all sorts of unpredictable reflections and phasing issues that are obscuring the details of your music.
Ditch the rears completely but leave them in place for the time being. Bridge the four channel to the fronts and be conservative with the gain, give them somewhere between 150 and 180 watts. See what that does for you.
I am running two sets of Rainbow SLC 265.25 Kick NG 6.5" Component Set's running off a Hifonics ZXI8408 amplifier. I was wondering if that is why it seems the speakers don't sound as good as I feel they should? I mean they sound loud but not really perfectly clear,
but
It does sound good just seems like the tweeters over power a lot.
Which is it?
I run rear fill too but you'd never be able to tell by listening and I'm still thinking of getting rid of it. I do cheap coaxias high passed at 125 off whatever the head unit makes.
Just saying, your lookin for a stronger amp, and you're saying you're having issues with the clarity. All you'll get for your money is more of the same, but louder. Your issues can probably be resolved in large part by yanking the rear deck components, bridging the amp to the fronts, and checking your tuning at little no cost to you. Better to go that route first before deciding if you want to pony up for more amp.
