I had a Mobile ES HU about 7 years ago. It was phenomenal. Simply connecting it to the factory speakers made an improvement that was simply amazing. I now have the oppurtunity to buy what was then the top of the line SOny Mobile ES CDX-C910. It features dual twin 20 bit DACS, a copper chasis, outboard power supply. But it only has front/rear pre-outs and no x-overs. I know ways around those shortcomings, but does anyone here have any hands on experience with this deck or similar decks. I can get one with a new faceplate for $400. Good deal, bad deal? Thanx.