All things being equal (hypothetical) which do you prefer, XLR or RCA?

I prefer true differential balanced, XLR. See the link below, for insight on true balanced cables.
                                               
https://www.ranecommercial.com/kb_article.php?article=2107



   

If all things being equal, I would use XLRs because with my components the XLRs delivery a higher db music signal.

Therefore, I got a bit more volume out of my system.  And as a former field artillery guy louder is sometimes necessary.

kingbr
Just curious here. All things being equal would you go balanced or unbalanced if you have the option for both?

Got to watch it here, as many pieces of equipment especially tubes are only "pseudo balance", with an opamp or balanced circuit at the input or output of what is essentially a complete single ended design.

The rca with 1-5mt interconnects will sound better in these cases because it bypasses these opamps. (Unless 10mt of interconnect are used)

If you look at a circuit diagram it’s easy to tell if you know, if not ask the manufacture for "an honest answer in writing", ("Is this equipment balanced all the way from input to output"?) if he won’t give it, give him the big flick

Cheers George

This construct of "which do you prefer, XLR or RCA cables" is kind of backwards. Choice of XLR vs RCA (single ended) cables follows the design of source equipment such as DACs & preamps, in which either balanced or single ended designs may be executed for reasons best known to the designer.

I have 2 balanced headphone amps in my system (which also sport SE outputs); and 4-5 single ended headphone amps; and a big speaker amp that can be run via SE or balanced cables. So I've had a lot of chances to compare SE vs balanced, across amps. Here's what I've observed:

-- Running an all balanced system (source components & preamp & speaker or headphone amps all designed for balanced operation) might be ideal theoretically. But due to the greater output voltage coming from balanced vs SE source components (2.0V - ~3.0V SE vs 4.0V - ~5.0V balanced), a balanced chain would introduce intolerable gain issues that are not possible to eradicate without introducing ancillary gear (ie, passive volume controller) in one or more places to control gain (and that's hardly ideal).

-- Headphone amps designed for balanced operation usually sound better via balanced output cable to the headphone vs single-ended cables. Headphones are quite revealing and these differences, though subtle, are not a big challenge to hear. Balanced cables often deliver slightly better/wider/deeper soundstage, dynamics, and bass.

Having said all that--if I ran a music studio and my audio gear was in service of music production, everything would be balanced--because long runs of balanced cabling are far more immune to RFI and other external distortions than single ended cabling.