Thoughts from Joule preamp owners?

I am not familar with LA-100 but I auditioned the rest of their preamp line. LA-150 Mk1 (original) is not terribly musical on my taste.
LA-150Mk2 is fantastic - seduce you into the listening and you can't stop. Excellent bass. For my taste a bit more midrange lush then I liek.
LA-150SE is just right, texture right, dynamic range, minute details etc
LA-300ME, I own is something exptraordinary and I thought for a few years that it is impossible to make a better one
LA-450ME - when I auditioned it I understoon that it is possible to make better preamp then LA-300, and it is "450". It sound indetical to LA-300 but....better.

Good Luck!

Yeah, that LA-150MK I used the 6H30 tubes, no?

Russian 6C45PI ??

My mistake, that sounds right. Jud seemed to correct that detour rather quickly.

Joule says that tube rolling with 6H30s is not needed for the best sonics, and that would be welcome after I found it a virtual necessity with other preamps using 12AU7s, 6NS7s, and 5687s.