I created a support ticket for this yesterday but wondered if anyone here might want to chime in on the issues...thanks!!
I have a couple of issues with my 990/7700 combo.
I believe it is specifically something with the amp.
I am using balanced inputs from the 990.
1) There is nothing coming from the left channel.
2) Whenever I put anything into the center channel on the amp I get a huge amount of what I can only really describe as "electrical" noise from the speakers.
I swapped out different cables and switched inputs from the 990, but everything seems to come back the the amp.
It also seems to be isolated to those two inputs because I am currently running everything without issue using the SBL and SBR in place of the C and L channels.
(I currently do not have 7 speakers only 5).
Any thoughts?