Quote: Originally Posted by
thomen 
firstly i really wanted to know the difference between the pxi-h990 and the pxa-h900?
990 is a H701 with upgraded components. I don;t know what other features it may possess over the H701, but the manual or alpine's website should help you out there. the 900 is 11 channels, while the 990 is only 8 I believe.
Quote:
can you control either straight from your car pc? i know with the h701 you need the rux controller..
The H990 has usb pc link, I don't know about the H900 since it's an old model. Contact alpine. If you want PC control there are other options to look at too- look at zapco or Rockford Fosgate 360.