RCA vs XLR

Yeah, right. RCAs sound better than XLRs. That one ranks right up there with Pioneer's claim in the late 70s that their engineers had developed a tonearm that was lighter in weight but higher in mass. Maybe all the recording studios and broadcasting facilities in the world have missed the boat, and should immediately switch to using RCA connectors on all their cables. Now we finally know why recordings never, ever really sound like live music. It's those damned XLR connectors on the microphone cables.

Sounds like you ran across one of those people who think Single Ended is the only way to do audio. I am in total agreement with the fact that this guy is wrong -- how can RCA image better when XLR typically has 3-6 dB lower noise floor as compared to RCA???

Ideally, neither XLR or RCA plugs should have a characteristic "sound". Pro audio types use XLR because of its relative immunity to RF contamination and its locking connection. In a low RF environment it's possible that single-ended RCA connections may sound better than balanced XLRs. This is due to the fact that truly balanced equipment requires a much more complex circuit design and implementation. In other words, it's easier to screw up a balanced design than a single-ended component. That's in theory, in practice it may be just the opposite. I use balanced XLRs, but then again I live in a high RF area. Your dealer is at the very least overly simplifying the issue.

In a truly controlled (lab) environment with unlimited
budget design XLR will be better. Real world it isn't that
easy with some maufacturer's RCA sounding better than some
other's XLR. Even if it means spending a bit more, always
test your targeted componet in your room with what other epuipment it'll be connected to. Let your ears and taste
make the final decision.
it's going to be connected to

Thanks Brauser for your sensible post. XLR against RCA is neither a matter of faith nor of simple specs and "science" generalised. The proof lies in the listening! At least that has been my experience too. An afterthought: Balanced power lines, be it through Equitechs or the PS Audio Power Plants, I personally found a true revelation in the general lowering of the noise floor. Got nothing to do with the topic of this thread, was just thinking about "balanced".