Hmmmmm. It's hereand it is basically an EQ to help flatten out bass response- little black box that goes in between preamp and sub input. It samples your room's sound with a detachable microphone and then determines an optimal EQ curve. Might have some merit if it works as advertised without causing problems of its own.
Anyone tried the SOS Subwoofer Optimizer System
I purchased and SOS system yesterday from a local dealer in Mobile, AL who claimed the SOS would improve my bass response. He said that if I didn't like it, I could bring it back, so I took it home. I currently own a servo-15, but have been unable to integrate it into my system without it dominating everything. After a few minutes of calibrating my system, the SOS was inplace. All I can say is the dealer was right. My subwoofer sounds like a million dollars, bass is a whole lot tighter. I now have serious slam, without all the low end distortion. I wonder if anyone else has seen the same results from this thing.