AES48 , is there a test to determine?

Yyz, thanks for the link. I’m thinking my dac and amp are just the 4volt “balanced” type. So I will have to avoid the Benchmark xlr cables, and choose a more common type.

OK thanks Ralph. The Benchmark website writes about this extensively, so I guess they are doing "something" to make it happen. I'm not technical enough to explain how, and I'm sure you're too busy to explore some other company's claims. It doesn't seem to be that important anymore as I have determined that my DAC and amp do not support the AES48 standard. So it seems I can not benefit from the special XLR cabling that does not use a ground.

YYZ,

It was partially your high opinion of the HPA4 that lead me to try purchase one. Since the HPA4 is AES48 even though it has both balanced and single ended outputs without a switch (please comment Ralph) I was concerned about the Schiit Yiggy and the PS Audio M700's. I want to get 2 good XLR cables. I'm thinking of Audio Envy. They have 2 types of XLR cables. One the "GL" series seems to be for equipment that supports AES48 and their other line the "4:3" for those that do not. But, if my DAC and amp do support AES48 then it seems like the Benchmark XLRs will be just fine at less than 1/2 the price.

Ralph ... thank you for the "test" procedure, but I don't think I understand exactly what you mean. Does anyone know if the Yiggy DAC, or the M700 Ice Amps conform to the AES48 standard?

Thanks to all.