Help please

When you say "I have had three other pairs of speakers in the room. Same thing." Are you saying those other speakers also sounded off in the right channel? I know Simaudio says the gear checks out can you get other gear in there to see if it makes a difference? And are you working with a dealer?

My speakers turned out not to be the problem. I still think it was in my electronics somewhere. But now one of my new speakers sounds like a blown driver. My dealer moved out of state, but told me just to start over. I laughed

Well have you tried systematically swapping channels? First try swapping the speaker cables on your amp to see if the problem follows. If not work your way back up the chain switching interconnects until you isolate the piece of gear.

Also, try swapping speakers if the cables check out.

Could be an IC - but you have all new gear.  That's weird.

I had an issue with a new amp right out of the box.  Left channel was dead as a door nail.  Turned out to be a bad solder join. 

I recommend you have your hearing checked with an Ear Nose and Throat MD.  I spent a decade swapping out speakers, amps and cables in two different homes, but the sound on the right side of my room was never as loud or as clear as the sound coming from the left.   All along the problem was my hearing on my right side.  

Now, before each listening session (and sometimes once or twice during long sessions), I pinch my nose, hold my breath and blow out to clear my ears.  It works.