yeah, Prodigy is right. Mine is one right below Dat. I did some research before I bought my deck. Just to name a few, (the more important one), I have most of his features, but his version also adds "i-Personalize", where you can go onto the Alpine website, do your time correction, EQ settings, and Crossover settings there, then download the settings to a CD, and then import it into your deck. Neat huh? I also have time correction, EQ, and x-over built into my deck also, but must all me manually done at the receiver, not on a computer. In addition, Dat 9831 also has the nice ass dot-matrix display, soooo nice. And the screen itself is also larger by bout quarter-inch on top and bottom, which can be seen in the picture.
Yeah... quite frankly, the model year that Dat and I got is 2nd to the last best one. I remember the year after this, they added some kinda "touch" feel button sensor bar at the bottom, you guys remember what i'm talking about? That was pretty cool. After that year, all the deck started to get more "cost-friendly"
As for competition... I'm still waiting for Alpine to make something to compete with Pioneer's Avic-D3, Avic-N2, etc... Alpine doesn't seem to have any indash DVD player AND Navigation ALL in one. What's up with that...
off topic, check this out... http://www.alpine-usa.com/US-en/product ... l=iDA-X001 cool huh?