No big deal. Mostly rants about how great obsolete Acoustic Design equipment is...
There's a reason no one was using them by the mid 70s. They sound entirely different 40 feet out than they do on stage and totally screw with a mix in most venues. An original fridge sounds pretty much the same on the stage and in the back of the room. Ask a sound man which he prefers.
But what do I know? I only started playing a B-18 in 1965, moved on to an SVT with two Sunn folded 18 cabs in the early 70s and by '77 was playing three Sunn Coliseum heads, three original fridges and a brand new, immediately modded, '77 TBird.
And BTW, a 4-10 cab moves much more easily than anything larger when equipped with that recent invention...the wheel. Especially when used in the proper configuration. Once again, only if you believe the laws of physics.
GTFO my lawn and carry on, Acoustic fanboys