Been a while from ICE. Only recently stumble across this little gems. I could drive front and rear speaker actively and have installer tune for me. It can either do 8ch or combine any of the 2ch into bridge mode for higher power drive. Very flexible config. With main input, one aux and one optical in direct to the amp. IF you know what you want it can perform extremely well. (digital domain). There's also sub out (line level) which I could utilized in the future.

I purchased the AP 8.9 to enhance my system sound but it is not performing any better than the original rcd 510 that came with the car, it got so many abilities and settings that its wonderful but still after lots of hours the sound isn't better, i have it for six months and the wired remote stopped working after 5 months and now the pc interface stopped working, so i am stuck with one setting and no ability to change between sources, i expected more from Audison at this price level.