Balanced vs RCA Interconnects

Most high end manufacturers will be happy to tell you what they have found works best with their equipment, and what in fact they've designed for. I have a friend with Accuphase equipment who told me that the rep told him that they design for SE and added XLR's because so many people wanted it; a dCS rep told me in a casual conversation at a dealers showroom that dCS is precisely the opposite in its design preference. So does a balanced NBS cable sound better in a dCS hookup than a SE does? I switched back and forth for two hours. The result? There were slight differences, but the only thing I'm sure of is that I'll never listen to that CD again!

As Cornfedboy suggests there’s more to it than “balanced or not”, or “which IC sounds good/better?” ...It’s a matter of how the component you are connecting was engineered to be operated. For example certain designs such as BAT or Sim Audio are fully balanced (circuit) designs that are intended to be operated with balanced connections. When configured in this manner such components can offer much greater resolution. I suspect that the only reason that companies such as these include RCA terminations is because they HAVE to (for the sake of flexibility). ...Then there are other companies who offer components with balanced connection options merely because it is expected - they are high caliber components, and the owner might want to run very long IC’s. Meanwhile these same components might have been engineered to sound best running single ended. Like so many other aspects of audio its all so very personal. Frequently compromises are necessary in order that we might own that incredible piece of gear we lust after. ...No matter that it might not be best suited to our system or physical circumstances.

i agree it's a worthwhile consideration on long runs, but can't see the reason on short runs, unless the product is specifically designed in a balanced configuration, as john_1 mentions...

Very interesting dialog. I have been considering this issue now that I have a BAT pre which is a balanced designed with single ended inputs and outputs added for flexibility. I have been using SE since my front end and amp have se only. I like the pre, but would also like to "see" (hear) what its like running balanced. Anyone with any comments on whether this would require changing front end and amp to realize the full benefit of this piece?

I have had mixed results in this arena, depending on the equipment in question. From my Mark Levinson 380 to Mark Levinson 335, balanced sounds best, hands down, no questions asked.

From my Sony SCD-1 to the ML 380, SE used to sound better than balanced, that is, a $15 pair of AudioQuest cables used to sound better to me than a $500 pair of Madrigal CZ-Gel... And then I got new speakers that are a little warmer and more coherent, and now the Balanced cables, to me, sound better hands down.

This is doubly odd as the SCD-1 was designed to be single-ended, and the balanced signal is generated artificially...