Considering switching to XLR cables,

I'm assuming the ARC & Pass are both fully balanced circuits.

If you live in the middle of Manhattan with 100 different wifi networks within a stones throw of your audio system, XLR should definitely be both quieter noise-wise and louder signal-wise.  Win-win

If your system is in the middle of your 40 acre spread in South Dakota, you'll still get the signal boost, but any further gains are less likely.

@salc 

In my 30 experience, XLR is always better!!!  You just can't go wrong by going with XLR throughout your entire system.  Also, get the very best XLR you can afford, and you'll never return to RCA.  Happy listening.

There's no objective difference between XLR and RCA cables except for the locking feature that has zero to do with sound. Zero. . Also, your equipment doesn't care what "quality" (price) the cables are. The signals will transmit just as well vis Blue Jeans cables as it does via Crystal Cables. Don't fall for the expectation biased hype.

XLR on mics only, unless the bit of gear is only XLR.....

Then I gender bend to RCA.

Keeps that level of complication down....MHO. 🤷‍♂️

+1 @ghdprentice 

I originally was using mostly Audioquest and switched my system over to Transparent when I purchased my ARC Ref6SE and Ref160S.  Transparent is a game changer.  I highly recommend XLR wherever possible.  To me, it was a significant improvement in SQ.