I received my refurb 972 yesterday. Visually I cannot see any wear other than a slight blemish on the remote. I did not have a lot of time to play with it, but I did manage to get it installed in my rack and wired up. I ran the speaker calibration test once, but then realized the RCA cable for the left surround's pre-out was not plugged in all the way, and that obviously influenced the speaker calibration

Hopefully this weekend I'll get to do a proper Trinnov calibration. I do have some questions, however:
1) I assume there's no OSD other than the setup menu? In other words, I cannot get info like what audio mode I may be in, or info on the input, etc, on my screen (not a deal breaker, just wanted to confirm).
2) Are there explicit IR codes to select surround modes? For example, I may want to program an activity on my harmony remote to select a source and select a specific surround mode (like Dolby PLIIx). Admittedly I have not checked the Harmony database, but I thought I'd ask here.
3) For the +3 and +6DB bass boost curves, are these to boost the subwoofer only? Of course that should be the intent if you have a sub, but if you don't (like me, for now), I am wondering if that would be applied to my main speakers.
Thanks!