Has built-in adjustable high-pass x-overs for the front and rear channels, and a low-pass for the rear. There's even an option to reverse the sub polarity from the HU. Also, you can adjust the Q and frequency of the highs, mid, and bass EQ.
The X917 is the top of the line, but the only difference between the two is that you can manually turn off the internal amp in the X917...not worth the extra $50, IMO. 817's retail price is $550...I think I got mine for about $400 or so.
1995 Eagle Talon TSi AWD 1996 Eagle Talon n/t(for sale!) 1998 Kawasaki ZX-6R Ninja
