Amp selection. All 22 channels of amplification can be easily interchangeable within system without changing the JBLSDP75 interconnects but by simply moving/interchanging the speaker wire connects in the equipment rack.
M2 Horn and LFE Mark Levinson 5 series H, not an original idea as Rob Hahn is using 533H for M2 Horns. Chosen for Midrange, vocals and musicality.
M2, LFE, and here is where it gets a little interesting , I have spec'd out additional 3 channels of Mark Levinson 5 series H with the ability to easily move the following amps within the 22 channels of speakers in case the ML 5 series H comes up a little short for M2 LFE.
Theta Dreadnaught D, again with ability to swap amp/speaker channels within system by simply changing speaker wiring in rack. JBL75 interconnects to amps will remain coonstant
Ati Ncore 5282 8 Channel.