No connection with Vann's. I got all my Mirages at discount, but not the kind of discount Vann's has on some of them, particularly the OMD-28 and 550 CH. I own a model that sat between them--the OMD-15, three times the price of the 550 CH and one-third the retail price of the OMD-28. The dimensions of the OMD-15 are very similar to the 550 CH, but with higher level drivers and cabinetry. The bass drivers are actually smaller (5.5") than the ones in the 550 CH, and *definitely* reach well down into the 30's, as I play all manner of bombastic orchestral pieces on them, such as Holst's "The Planets." The OMD-15's have the advantage of Mirage's ribbed elliptical surrounds for better linear excursion, but even so, with two 6.5" drivers, a column like that, and a downfiring woofer, the 550 CH should (once broken in) provide some good reach into the 30's.
Feed 'em some good amplification via some good speaker wires. Bi-wire 'em if they have the dual terminals.
Feed 'em some good amplification via some good speaker wires. Bi-wire 'em if they have the dual terminals.

