RCA to XLR adaptor for Ayre, is it worth it?


I have an Ayre V3 which has both XLR-in and RCA-in; according to Ayre, it is much prefered to operate the V3 in the balanced mode.

Currently I only have RCA-out from my source/pre and I'm using the RCA-in on the V3. Is it worth the effort to use a RCA-XLR adaptor and have the V3 switched to the balanced mode?

Currently I don't have the space and $ to switch to a balanced pre setup.
kschiu
Steve, you mentioned V-3xe. I was under the impression the V-3 was the only designated model number, regardless of upgrades. At least the two units I had were represented as such.

I'd be interested in knowing what constitutes the xe from the V-3.
Post removed 
Old habit- There is no V-3xe, just x I'm just used to writing xe all the time.

Steve