Stone

I have not seen a per-channel crossover, but I have used the high-pass filter which I believe is dedicated to only the front and rear outputs. You will probably have to set the filter on the HU and adjust the crossover for your front's seperately.

Does anyone have a list of what file types (including sizes) that can be loaded as a background? The 4300 has 3 or 4 video clip type backgrounds pre-installed, but I cannot find what type of files these are or if new vid clips can be loaded as backgrounds. Has anyone been able to load a media clip as a background? Thx.