Actually, you could make such a system, with TWO LE10As per side, in parallel. This would gain you close to 6 dB more "sensitivity", as far as matching in the network with the 2426 and 2405.Originally Posted by Mr. Widget
If I was doing this, I'd run the two LE10As in a SEALED box, of between 2.5 and 3 cubic feet total (1.25 to 1.5 cubic feet per LE10A), filled loosely with fiberglass. This would give an f3 of between 55 and 60 Hz, with FULL ACOUSTIC POWER HANDLING down to right about 60 Hz. This would be an ideal crossover point, to hand off to the 2242 subwoofers.
I'd say, with a 3 cubic foot airspace inside, an enclosure height of between 36 and 48 inches would be pretty easily do-able. The width of the enclosure would be completely determined by the width of the horn flare; it could be a reasonably "svelte" enclosure, with the choice of the right flare.
The nice thing about having the LE10A's in a sealed box, is that it is MUCH EASIER to integrate a sealed cabinet with a subwoofer, than a ported cabinet. You can use a Butterworth second order highpass electronic crossover, set at about 60 Hz, and wind up with just about a textbook-perfect 4th order LR highpass acoustic response for the main speakers. Simply use a 4th order LR lowpass at 60 Hz or so, to the subwoofer, and you should have pretty much taken care of crossovers.
Though, with a crossover point this low, you can "fiddle around" with "gapping" the crossovers (leaving a small region between where the lowpass rolls off the sub, and where the highpass rolls off the main cabinet, ie, "underlapping" the crossover points), to help "shelf" the subwoofer response (to make it effectively go lower in reach in its bottom end), or to help combat room boom modes (which frequently exist between 50 and 70 Hz in MANY rooms).
In all, I'd think it'd be quite an impressive system...
Regards,
Gordon.