I really wanted more adjustability with my cars system. the pxa h100 was a good piece but was limited on both inputs and outputs. the pxa h800 solved that for me. it can accept speaker level input on it's RCA jacks and that worked flawlessly. the auto set up was pretty good and allows "tweaking" after it's run. truth I'd my truck never sounded so good. not only did sonic have the best price on it, I also got it right away.
my system consists of Orion hccas, a 150,250, and 275, all active
morel mids and tweets and a custom built 12