@mike_in_nc @chuck Thanks. Yes D Weiss is helping me and he’s most kind. The Digital Cable AES/EBU from streamer uses the XLR input. Somehow RCA was selected and I was careless not to notice. It’s now back on XLR but still no sound. I hoked up anther source to AMP and AMP is working.
My theory is something went wrong and unit jumped to RCA.
Streamer is a Roon core and it has two other end points that are all good and working so something amiss in the 501???