Thank you all for your help. I didn't mention that the MA-12000's DAC died over the weekend and that started me down this path. I also have called McIntosh.
I purchased a Holo Audio May KTE and Timbernation maple equipment stand. When I'm close to delivery, will probably pickup 0.75M Audioquest Earth balanced interconnects and the Shunyata Sigma v2 NR power cable. Power conditioner and good power cables have been the biggest improvement to my system.