A lot of amps have an opamp on the input to handle the XLR input signals, then come back to the single end after this opamp. Where the rca input bypasses this opamp.
I have found this on some big hiend amps. You can imagine that the rca on these amps sound better than the xlr inputs when the levels are the same, but being an opamp for the xlr input some have a small amount of extra gain especially if the opamp they used is not unity gain stable.
These kind pseudo xlr inputs are more common than you think.
Cheers George
I have found this on some big hiend amps. You can imagine that the rca on these amps sound better than the xlr inputs when the levels are the same, but being an opamp for the xlr input some have a small amount of extra gain especially if the opamp they used is not unity gain stable.
These kind pseudo xlr inputs are more common than you think.
Cheers George