I measured one of the drivers in case anyone is interested:


Re - 4 ohms
Fs - 38 hz
Qms - 4
Qts -.3
Qes - .33
Zmax - 52 ohms
Le - .49 mH
Vas - 8.5 cu ft
Eff - 3.86 %
Sens - 97.8 db/watt/1 m

I ran impedance sweeps on the rest only.

Thanks, Ron