My car setup... Nak 45z, Audio control three.1, eclipse 3640 4 channel amp, running rainbow dreamlines 6 1/2's upfront and kenwoods in back.

The audiocontrol is set by factory at 90hz crossover on a24db slope. The eclipse amp is playing passthru.. with no hi or lo pass engaged. My subwoofer sounds great ( JL 250/1 to Edesign12K)

My accord coupe doors are deadened with at least 2-3 layers of deadening material, I used the altered stock brackets to hold the woofers and placed the tweeters on the upper door panel.

The headunit is flat across Bass,Mid, treble at 0, no bass boost on eclipse amp either.

........... as of now I have almost zero midbass.... if I try messing with the HU bass controls.. the midbass and subwoofer increase and sound artificial and boomy.

The JL amp is also set to pass through.. I thought because the Audio control EQ is splitting the signal 90hz below to sub and 90hz above to 4 speakers, I dont need to mess with the crossover setting of the 250/1 amp. So basically both amps are playing pass through and the crossover is handled by the three.1

Well that's all the details of my car audio situation.. first tried old CDT slim coaxials in the front doors and now I switched to dreamlines... the midbass did not increase at all or if so only marginally.

Any help guys!!?? I ordered a 70hz module for the audiocontrol to set the crossover point down to 70hz. I thught that might help... but other than that I'm utterly confused...