F-XLR to M-RCA recommendations

@OP - there is zero point in using balanced connectors unless the connection is balanced to balanced. Balanced circuits are designed to cancel common mode noise, but to do this they only work if the source and receiving component have balanced inputs. Even then, depending on the quality of the balancing circuitry, a single ended connection may be better.+1 to fatdaddy2 for the earlier post on this which bears repeating.

a single ended connection may be better.+1 to fatdaddy2 for the earlier post on this which bears repeating.

Thanks, I'm listening @yoyoyaya and @fatdaddy2

@tyray, thanks. Just on your earlier post about galvanic isolation - that generally involves using a transformer in, generally, a DAC, to isolate the DAC from incoming noise on the USB input.

However, transformers are often used in balanced circuitry - especially in pro audio - so that can make things a bit confusing.

@OP - there is zero point in using balanced connectors unless the connection is balanced to balanced. Balanced circuits are designed to cancel common mode noise, but to do this they only work if the source and receiving component have balanced inputs. Even then, depending on the quality of the balancing circuitry, a single ended connection may be better.+1 to fatdaddy2 for the earlier post on this which bears repeating.

@yoyoyaya Agree with all this, but in @tyray’s case he’s considering a new DAC with only balanced XLR outputs, no RCA outs. And I assume his downstream component / amp has only RCA inputs. It’s certainly a less common use case to interface like this, but it happens.

So looking at the Laiv (I was searching for "microDAC" when it’s written µDAC lol), it says "discrete class A output buffer". Yeah, you want the Cardas XLR (female) to RCA (female) adapator with its stock configuration (pin 3 open). OR use a Jensen ISO Max box for transformer based XLR to RCA conversion.

With the adaptors you’ll have half of the Laiv’s output stage (negative phase for L and R) idling (with class A it's still producing full heat at idle, but safe), but it will work fine this way. With the ISO Max you’d have the extra box / interconnect and "might" hear the effect of the transformer - but in my experience with ISO Max going the other way (RCA to XLR), they’re pretty damn good!

@mulveling, fair point - I missed that. That being the case, I think tyray would be better looking at a different DAC. If not, I second your recommendation of using a transformer to convert balanced to single ended. Still, its an awful lot of faffing around for a cheap DAC.