I've been real happy with the 750. I don't play at real loud volumes often but the few times the amps never run out of gas.

The sound stage and imaging has been excellent, however when I added my RPTV I lost a lot of the sound stage. One day when I go projection I'll gain a lot of that back. I'm curious to see how much better the 990 does than the older Marantz on 2 channel sound.

If it shows up this weekend I'll report back the first of the week.

For home theater the amp is sleeping most of the time but the reserve punch is there when needed.