[Elecraft] 2nd Receiver Perceived Problem

[K3RWN]

This may not make much sense but I installed the 2nd receiver and it appears
that my NR is not working properly on either receiver.  Listening on a PRO3
beside the K3 very strong signals sound much better on the Pro.  The K3 is
just loaded with noise.  I have double checked everything (I think anyway).
Even the most aggressive NR settings still contains noise.  The problem is
still there when I turn the SUB off. 

 

Any ideas?

 

Rich