I guess that's why I like the Thiel SmartSubs. It's a lot easier to integrate into an existing setup.
The subs have two adjustments: distance from two nearest walls. This compensates for boundary interactions.
The S1 integrator then adjusts for the main speakers and power amp. You just dial in the specs of the speaker (sensitivity/ported/sealed/-3dB low frequency cut off) and the power amp (gain). The crossover in the main speakers are untouched and they run unadulterated. The subs just fill in what the main speakers can't reproduce.
I've moved the speakers/sub a few times and to 2 different rooms and never have to deal with the Goldilocks (too much, too little) problem everytime
