I concurr with lowering the gain on the Parasound. My A21+ gain is set at two o'clock (two thirds). Not for hissing, but I get the best sound there.
Very faint hiss from tweeter
I just put a new system together and noticed that when no music is playing, if I put my ear very close to the tweeter on either speaker, there is a very faint hiss sound. Is this indicative of a problem? Its not audible unless my ear is very close to the tweeter, but I wonder if its polluting amplified sound when I play music. Should a system be stone cold silent when powered on with no music playing?
Heres my stack:
Focal Aria 936
Parasound A23+
Schiit Freya+
Bluesound Node X