I could be wrong and without going back to the disc I thought it stated the calibration process was for a single sub system. Like you Grunt, it seems to me like that particular calibration process could be designed for a multi-sub system.
Just to be clear I was thinking it would be good for speaker + subwoofer pairs where each pair is hooked up to it’s own channel L/main, R/main etc… otherwise I can’t see any use for them in a single or multi-sub system running off the subwoofer line out.
Clearly how they tell you to use those other test tones is very confusing.
