In order to get the SMS-1 to perform optimally, set-up is a GIANT pain in the ass. The "auto-correct" function is inexplicably crude and manual adjustment is 1000% better. Unfortunately, it's also a time consuming process of trial and error for many of the settings.
However, once it's dialed in, the SMS-1 sounds pretty damn good, although you may wish to bypass the high cut function which is both inflexible (fixed at 6db/octave, 80hz) and possibly audible thru your main speakers (YMMV on that one). I ended up using an NHT outboard crossover ahead of the SMS-1 to take that unit out of the main signal path, but some might conclude that this is overkill - hence the YMMV, above.
Been there, moved on to Audyssey.
Marty
However, once it's dialed in, the SMS-1 sounds pretty damn good, although you may wish to bypass the high cut function which is both inflexible (fixed at 6db/octave, 80hz) and possibly audible thru your main speakers (YMMV on that one). I ended up using an NHT outboard crossover ahead of the SMS-1 to take that unit out of the main signal path, but some might conclude that this is overkill - hence the YMMV, above.
Been there, moved on to Audyssey.
Marty