AES48 , is there a test to determine?

I hope you like it. There is nothing there in the HPA4 sound so you will hear your other gear.

You can always contact these 2 USA based companies and ask them directly. 

Let me say in advance I have never used XLR cables.  Also, that I may not be correct in what I believe Ralph was saying.  But I thought he wrote awhile ago that in a true AES48 standard balanced application one XLR cable will sound identical as another.

Ralph, please feel free to correct me if I have mischaracterized what you were saying.

@jetter ,
I recall Ralph saying that equipment using AES48 will result in cable artifacts being reduced. Whether differing cables will sound ’identical’ is probably more a matter of opinion.
FWIW, I bought a 10 meter set of XLR’s from Ralph years ago and didn’t think of upgrading until recently when I bought a set of AQ Mackensie XLR’s. To be honest, I didn’t perceive a marked difference in sound quality.- So, perhaps Ralph is correct.
YMMV.

Bob
PS- I should add that I am running Ayre and Atmasphere equipment. Both manufacturers utilize the AES standard.

@gdnrbob ,
Thanks for providing your experience using the XLR cables, very interesting and of course first hand knowledge is best. I’m still using all RCAs at this point.

It has always stuck in my brain that Ralph mentioned what we have been discussing.
George

@koestner You likely have seen this but I will post here anyways. It explains how your preamp is wired.

https://benchmarkmedia.com/blogs/application_notes/balanced-vs-unbalanced-analog-interfaces