Thanks for all the responses. Sorry I didn't reply - not getting notifications for some reason.
This is what I received back from Ayre:
"Just use RCA in this case until you’re able to upgrade your amp to balanced. The Ayre sends everything truly balanced, but a lot of even so-called “balanced” amps take the signal and just convert it to single-ended internally to save on parts. It’s not the right way to do it and eliminates pretty much all of the advantages of having a balanced system in place. Adding any converters really just puts something else in the signal path and you’ll lose more than you could potentially gain."
This is what I received back from Ayre:
"Just use RCA in this case until you’re able to upgrade your amp to balanced. The Ayre sends everything truly balanced, but a lot of even so-called “balanced” amps take the signal and just convert it to single-ended internally to save on parts. It’s not the right way to do it and eliminates pretty much all of the advantages of having a balanced system in place. Adding any converters really just puts something else in the signal path and you’ll lose more than you could potentially gain."