There are a few Audible Illusions models on the used market. I have not heard them but consistent praise ... service, on the other hand consistent difficulty:
https://hifizero.com/index.php?q=audible+illusions
https://www.audibleillusions.com/
Tube Pre-amp Suggestions.
I have a Coda No 8 power-amp and was looking for some suggestions on what would a good tube pre-amp that would pair up with it?
https://coda.cc/coda-no-8-amplifier
Thank you!