You are correct that the SMS-1 can store up to five separate EQ adjustments. From that standpoint it would be possible to have different presets for the different locations. If you're thinking about getting an SMS-1, this would be an interesting experiment.

I'm probably going to pull the trigger on the SMS-1 before the end of the month. I'll let you know how the experiment goes with adjusting for different listening locations. I'm sure it'll keep me busy for a while.

It would seem impossible for any device to move the "sweet spot" outside the boundaries of the speaker system itself. What I mean is if you drew a line between each of the speakers in your system, the "sweet spot" has to fall somewhere in those lines or not very far from the boundary at best. There is a limit to the amount of correction that can be applied.

Manipulation of phase can place images outside the boundries of the physical speakers. One of the first albums to exploit this was "Days of Future Past". It is routinely done today.

I'm not suggesting, nor am I going to be attempting to correct all problems electronically with the SMS-1. It's limited to I think 120 Hz and below anyway. What I'm trying to do is improve the situation. Yes the speakers are pointed in a particular direction in general so that the "sweet spot" is where I sit while in a HT setup. So yes the speakers will not be pointed "exactly" where I want them while in other parts of that very large room. But they wont' be terribly far off in most of the places I'll be. What I am trying to do is make the best out of the situation that I have. The room is huge, it has 30 ft celings in places, and 8 ft in others. It runs from living room, into the harder surfaces of a kitchen, it has a lot of open space, etc, etc. Frankly, the Outlaw 990 along with the Rotel amps actually sound pretty good in 2.1 audio mode now. I'm just trying to make it sound even better. So the goal is using the SMS-1 to correct for those alternate listening positions to the best of its ability. I can almost gurantee the measuements taken at the prime listening position for HT will be very different from the other positions I tend to be in while listening to music. Nonetheless, in a few weeks I'll give you all an update on what I find.