I'm not sure about Qs as I haven't bothered to measure, but I built a pair of arrays using 8 of these mid woofs per side and the only way I can describe the sound is BIG- like horn big, though without the size of a horn. I only used 8 per side as the 4 ohm impedance resulting is not a problem for my amp, and my enclosure is a TL tuned for 100 Hz and so making it longer than 38 inches was not warranted. I doubt if the big sound is so much a factor of Q factors than the huge wavefront created by so many drivers.