First Sound vs Aesthetix

The FS is generally quieter although some have had positive results w/ changing the tubes on the Aesthetix. I recently did a comparison of my FS pres del-2 against the Calypso and besides the FS being quieter and perhaps slightly more detailed, I did not find the calypso to warm things up alot, although it did portray images as slightly rounder. I did not hear anything that made me want to change to the aesthetix.

Yeah, my preamp is a lady when I first turn her on, but after she gets warmed up she becomes an absolute whore.

Tvad: That is exactly why I own the Callisto Sig. And with a careful change of her tubes, she quiets down.

First sound, quiet and reliable. Aesthetix more of a euphonic sound. It depends what exactly your looking for in a system and what you would be mating with it as to which would be better.