Originally Posted by inktoxicated

i got my highs ran thru the jl clean sweep. and the rcas (front back) from that go to my alpine 5 channel amp. my 5th chaneel runs my underseat speakers( which dont really add anything to the system sound wise)the wires for the underseat subs got ranfrom the tiny amp in the trunk. the front and rear 4 inchs wires came directly from the headunit. the subs get ran thru the clean sweep too. its an rcas maze really. i took it apart one day and couldnt figure out how to get it back together. right now shits just layin in the trunk. after my body kit imma get back to the stereo again and make it look nicer and ditch the front 4 inchs and get 6.5s for more midbass. the 4s are way to tin-e

Originally Posted by kdarcia007

Instead of JLCLEANSWEEP I use an AUDIOCONTROL LC6i, I don't know about the underseat speakers not making an impact, I think it depends on the brand and model of the speakers you have under your seats.

I have 2 x 12" Kicker Subs inside my trunk pumping 1500RMS (750 x 2), plugged to a Kicker Mono Amp 2500 RMS @ 2ohms), and they make HUGE bass, but I still miss the higher freq bass inside the cabin that the underseat subs can give me, I am also missing the center channel, the 4 other mids inside my car can't reproduce the effect that the center channel makes.

Originally Posted by nelson29

I would only install the center channel if you going to get the ms8. the logic7 processing on the ms8 does wonders with the channel.

regarding the 4" speakers stick to Rainbow or Morel.

If youre serious abut youre sound ditch the lc6i and get the ms8 or audison bitone. The lc6i or cleansweep dont have any dsp. No eq, time alignment, active rossovers, etc...

I also recommend spending some time in e90post.com car audio section, you'll find all the info you need there.