Well it's done. The new stereo sounds fantastic! I've played everything from Jimi Hendrix to smooth jazz. I still want to experiment using the 7-band EQ to fine tune the sound, but even with one of the stock settings the highs and mids are clear and well defined and the bass really thumps. The D-series rear speakers have a better bass response than the A-series fronts. That was just what I was hoping for. I also think that using Boom-Mat foam baffles really helped bring out a solid bass. I invited an 18 year old co-worker to give it a listen and he was surprised at the quality of the bass without subwoofers.
It's going to take me a while to learn all of the controls but the basics for playing FM and CDs are no problem at all. As a bonus cool factor it has several animated displays to choose from. I've read that some people have a problem reading the display but I haven't so far. I still have plenty of options for adding amps, front components, sub-woofers and other features later if I want to. Overall, I'm thrilled with the improvement in my music. I'm going out of town this weekend and for once I can't wait to make the 2+hour drive to my girlfriend's.