Balanced vs RCA preamps

A word of caution. Just because there’s an XLR connection does not mean it is a truly balanced circuit. I’ve seen many implementations where it’s actually a single ended circuit transmitted via XLR connectors. 

@jpan , if the manufacturer clearly states that a piece of gear is truly balanced, I am willing to take his word for it.

If your preamp is not balanced, it might start sliding and fall of the shelf so I would always go with a balanced one

@riie 

Of course, that depends on how level your shelf is

LOL

@atmasphere Usually XLR outputs have considerably lower output impedance than RCA outputs.

Where did you get this from? Have you done your homework before taking 10 seconds to write this? Let me do some homework for you, and you can do the rest to see if you can find anything to support your false statement.

My preamp has both, XLR   Lundahl balanced inputs transformers, since most Digital front ends are balanced ,then on the outputs RCA Because of Linear Tube Audio,originally Designed by David Berning with his unique Micro-Z-OTL  output stage ,which the Vacuum tubes run much more efficient ,lower noise ,The team at LTA  found over a few years to make it even better a Gen 2 Version , and use the Rays Select  6SN7 vacuum tubes , detailed a bit warmer , and  the other tubes 12AT7  or 12AU7  which I am using with some Very rare Medical grade Telefunken tubes  a great combo , + using 2 Hifi tuning Supreme CU-  Copper Gold -  4 amp 20 mm slow blow fuses on back ,which VH Audio Carry.

and as a good option ,and not too expensive  a Hifi tuning Supreme Silver gold 20 mm 3.1 amp Fast blow on the main board 

with a AQ Tornado Source  power cord ,Exceptional results and a who who of Excellent top notch parts quality which I know very well ,having 40+ years in Audio ,beating preamps at 2x the price $6350 Retail ,Mike at Audio Archon was very helpful , and fair-in  pricing.