i threw out the boom box term only as a comparison- it sounds very very good with the highs cut from the rear speakers- but the image is definitely smaller and easy to pinpoint-
when i turn the high pass filter from 2K to pass, it opens up the depth of the sound. for example, a cymbal crash from the right tweeter is a foot wide when the rear highs are cut above 2K. when the rear highs are fully passed, the same cymbal crash is two if not three feet wide, splashing on he entire front door panel or so it seems.
just when i thought everything was perfect on the way to work this morning, it went to crap on the way home. when playing FM all of the vocals are now biased to the left- even after much L/R centering.
So I spend another hour trying to correct it- my ears are tuned out!