Quote Originally Posted by JBL 4645 View Post

I’d use the same player and (A and B) the two systems with an RTA the level output might also be shy by a few db.
Aside from level matching, I'm more interested in what pleases me than messing about with an RTA. The total system calibration that was done is still in effect (see several posts above) and the room has not changed.

Someday I'll have grumpy stop over if I feel the need for more measurements; more probably I'll just have him over to mess about and drink beer.

It's the way I'm wired, I guess, but once I've done all the technical work and things are set, the science tends to bore me.