Esoteric SA-60

Never have I had such problems with a piece of equipment.  It's connected to the 7.1 bypass array of a Bryston SP3.  The display shows multichannel when I play a surround SACD, but I get sound only from the center channel.  I removed the parallel balanced stereo connection between the SA-60 and SP3, but that had no effect.  I never heard stereo from the SA-60 when I selected the balanced input, but I think I've heard stereo and multichannel from 7.1 bypass.

The trouble seemed to start when I learned that the SP3 does no processing in the bypass modes so provides no speaker management.  I set up speaker management using the menu of the SA-60.  But I've tried clearing the SA-60 memory several times since then.

I hope the problem is pilot error and not a defective SA-60.