Hi,
The brochure linked in the forum as well as the Stereophile review indicated that the IIA/R's had 1 front mounted 15" active driver and one top mount, slot loaded, 15" passive radiator.
However, my set has a 15" driver mount in the bottom of the speakers as well. The parts list shows two active 15" drivers and the schematic shows two 15" drivers wired in parallel.
So, was the design changed at some point to remove one of the 15" drivers or am I missing something?
-Gary