hey adam, it looks like you can change the gain and frequency of the bass mid and treble independant of whatever signal your sending to the subs.
ipod controls arent too bad. simulates what you see on (ipod)screen. playlists artists albums podcast etc etc. minor learning curve to navigating the buttonology. i thought for sure though the iphone video was working but now it says no signal. not sure if ive toggled something off in the endless sub menu's.
ill try to answer whatever questions you guys have about this unit, so far i think its pretty cool but it takes hours of interaction to fully understand how the unit will react in a specific situation. that kinda sucks.
The one thing that draws me to the Kenwood DNX6140 is the Garmin GPS software. I think Garmin has the best navigation. I'll probably end up with this unit as well.
Earl the GPS is by far the best feature of this unit. ive spent several hours fartin' around with the bluetooth and ipod cable interface but i gotta tell ya man, the gps fired up and runs perfectly. no messin around with aything it just works right outa the gate.