I have looked closer at the rhythmic subs. The F 12 SE has the bandwidth you need for a 100 Hz crossover, but that will be your limit. I see it is the LFE in that bypasses the crossover. So that is what you will use, LFE to LFE and set the AVR crossover to 100 Hz.
You need to make sure you have the A370PEQ2 amp. That is the only one that gets you to 200 HZ at -3db.
What happened to the +1 octave?
The A370-PEQ2 amp also comes on the F15 which comes in ~$25 lower in cost than the glossy 12" SE model.
The reason that this is not an academic issue is that an electrostatic panel is a line source and so the spl decreases by 3 db with the doubling of the distance. A cone loudspeaker is a point source, and spl drops off 6db with the doubling of the distance.
This makes integration of panel speakers and subs very difficult. You only get perfect integration at one distance.
Very nice illustration. How did you come to be some knowledgable on electrostatics?
BTW mine carries the bass note quite perfectly, just not for kappow thunderous applications, or higher SPL.
This is why I so dislike the Martin Logan hybrid speakers.
As per your dual firing back to back drivers, Martin Logan now offers this situation
in their Balanced Force subwoofers. Check out the 212 Model
MartinLogan BalancedForce® Subs, Flagship Subwoofer Series
I really like the top flip up compartment with user friendly controls at the fingertip
It also goes to the fact that you will have terrible problems trying to integrate a center channel. Quad's advice, I think is correct: - Don't try.