AES48 , is there a test to determine?

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.

I have determined that my DAC and amp do not support the AES48 standard.

If that is the case, you may not be able to run cables long distances and you might run into ground loop issues. But if there's no ground loop (which is entirely possible) than its not so much of a concern. I use Mogami Neglex in my home system. I've tried other cables but really don't hear a difference worth causing my hand to move other than to say this :)  Mogami Neglex cables are not expensive; you might pick up a pair and see what you think. If you don't hear a big difference than I'd say don't worry about it!

@yyzsantabarbara, does the benchmark conform to the AES48 standard in their design application, or does the unit merely support an AES48 input signal ?  Kinda like when a manufacture says that their unit supports xlr inputs, but they are merely single ended connection. 

@testpilot  You should email the designer of the BM gear.  I won't do that since I already bugged him with a few emails on compatibility of the AHB2 with my Thiel CS3.7's.

John Siau - JSiau@benchmarkmedia.com - designer

Rory@benchmarkmedia.com - is the email of the Sales guy.