AD612. It's not an ad but a coaxial high-eff speaker from Heretic Loudspeakers' Robert Gaboury in Montreal. Whilst using the same 12" 97dB drive unit with 1" compression tweeter as the smaller AD614, a larger 198-liter Birch Ply cab adds in-room reach to a claim "low 30s". The $9'290 old-timey box comes in 24 different linseed/beeswax colors. The filter frequency is 1'700Hz, the slope a 2nd-order series Linkwitz-Riley. Broad-shouldered yet stumpy dimensions are 65cm wide x 77cm high x 45cm deep.
