XLR and RCA interconnects in the same system?

In my opinion NO. In my system I prefer rca's. With XLR the gain is too high for me but the soundstage is just a hair wider.
Just my preferences.

What is the benefit as you see it? IMHO, the primary benefit is the potential noise-rejection over a balanced line. So, for each connection that uses it, you benefit (possibly).

Kal

My understanding is that the benefit of a balanced connection is a lowering of the noise floor. My guess, subject to correction by an engineer, is that there is some benefit to using a balanced connection between component and preamp, even if the connection from preamp to amp is RCA, since the signal the preamp is receiving is carrying less distortion. I would think that benefit would carry through to the amp. But it's just a guess on my part.

Thanks the only reason I bother is that I have the Cambridge azur 840 CD player and I just got 840 azur preamp the CD player as a balanced out and the pre has a balanced in and I have been told that the 840c really reacts well to balanced cables my amp is a McCormac DNA1 which is great but only has RCA inputs
Thanks Again
mxb289