Aestheix Calypso owners,tube advise needed

I've had my Calypso for 2 years ... Telefunken 12AX7 ribbed for now. bought an NOS 6922 but honestly the difference isn't worth the extra $ (not that it isn't noticeable but i could spend $ on other stuff).

I always wonder if it's better if I go to something else like a Modwright transporter and skip the Calypso ...

Have you looked into the signature upgrade? I have had both and the signature is a whole different level. I was very surprised at how good the signature is even compared with some of the best preamps. You forget all about low noise tubes with the signature, any noise is all gone.

Not to jump the gun.. I am still in the nos tube mode. Who does the signature upgrade, Aestheix or an after market co.?

The Signature upgrade is an Aesthetix upgrade. They may have authorised people who can do this like great Northern Sound, but I would find out through Jim White at Aesthetix first.

It's only done only at Aesthitex.... Aesthetix has a new website at aesthetix.net. IT's about time!