I don't know of any ability on the 1909 to store separate speaker levels for each input, but I'll try to check that out as I spend more time with the unit. More likely would be the ability to remember manual eq vs. audyssey eq by input, but I'll have to see.
Last night's setup went very smoothly. I really couldn't care less that the on-screen display looks like a Commodore 64 -- it gets the job done and doesn't need to be part of my aesthetic enjoyment of this receiver going forward. Having read the tip on this thread that the left arrow button is sometimes used to select an item during auto-setup, I was well prepared and the process is easy (though it does take some time to go through all 6 mic positions). I did get a phase error message and ignored it at the time, but it's actually possible that my wiring is incorrect, so I'll check that tonight. (Manual says the error may pop up even if your wiring is correct, so not to worry about it.)
As for the results, I should warn you all that I'm probably very easily impressed. I'm coming off a junk Sony STR-DG600, where you can forget about any kind of auto eq -- that receiver wouldn't even let me _manually_ adjust the EQ for any channels except the front pair! So music always sounded thin and harsh on the surround channels, given that my slim speakers seem to need a bass boost to correct the eq. But with the Denon's auto setup, and HD audio, the difference was night and day. Say what you will about the merits of Immortal Beloved as a movie, but the opening choral number is a great showcase for Dolby TrueHD! Finally I'm getting the most out of my speakers, the sound was rich and full with great surround presence. So far the sound quality on this unit is everything I was hoping for.
No HDMI problems as of yet -- I've bistreamed multichannel PCM, TrueHD, and DTS-MA 7.1 (Pan's Labyrinth) without incident. Can't wait to tinker some more over the next few days.