I have a Cary SLP-05. Love it. It has eight 6SN7 tubes. Two just for headphone out so they sound great. You can buy it direct with a 30 day audition. It is end game preamp.
I’ve got the upgrade itch
Thinking about going back to separates. My current setup is a Primaluna Dialogue Premium Integrated amp. Since the Primaluna has an HT input, I can do the upgrade in two steps, upgrading the preamp first. I am thinking about a 6SN7 based preamp, such as Sachs, Supratek, or, an Atma-Sphere MP-3 (if I can stretch the budget).
Question, will the preamp switch make a big difference over the preamp stage in the Primaluna??