Well I think I can go with an IDmax 12 now Jonathan. I got some serious midbass out of those 6w0's. Tried it in stereo first crossed over at the h/u, but was limited to a minimum of a 250 Hz lowpass. My image was getting pulled to the right rear so I went ahead and hooked up the PPI xover and used its mono 24 dB/oct subwoofer outs for low pass at about 170-200 Hz and it was much better although the midbass still pulled to the rear a bit.
Solved that problem with a bit of time alignment(my first experience with it. very cool. :) ). Managed to get the vocals dead center by reducing the gain on the right channel a bit, but the high stuff still pulls down and slightly to the right. The stock tweeter locations aren't ideal. Off axis ain't so hot on the left channel tweet.
The coolest thing is the midbass. I wasn't sure how it would sound with the 6w0's playing in the rear with different time delays being summed by the FRX-456, but it actually turned out wonderfully. The midbass plays slightly above the vocals about half way between them and the top of my head, but otherwise dead center.
And the Clarion?
OMG
Front stage output has improved substantially(had to knock the tweets down another 2 dB) and the detail is incredible. I found new stuff in material I've been listening to for over a decade. I swear I could hear individual brush wires drag over cymbals on some tracks from Phil Collins' "No Jacket Required". I lost a little bit after installing the doorskins, but the results were still far superior to what my old Alpine could provide. Either that thing was shot or the 9255 actually lives up to it's billing.
I have zero rattles now thanks to the sound deadening and strategic placement of thick foam weather stripping. My Explorer is noticeably quieter on the road as well. I think the hair pad might've had a lot to do with that.
Although the 10w0/stealth box has displayed a marked improvement(no more rattles and actually shakes the front seats a bit

), my 10 w3's are still struggling. I bought them things when they first came out as JL was in the process of discontinuing the original w6 line so I think 7 or so years of heavy use has just plain wore the suspension out on these guys. I noticed a substantial degradation in sound quality after about 30 minutes of hard playtime. Guess the voice coils are getting a bit hot.
All in all I'm realy pleased and when I get enough money saved for an IDmax 12d2 I think I'll be rollin.
-Fishy