I can't tell you the differences between the Stibbert vs. EC but I can tell you the differences between the Lector 7Ti and new tubed Stibbert. The Lector is a musical player, that's it. It is DARK sounding and a bit slow. The new improved tubed Stibbert, once you place NOS tubes and a good AC cord, has been a revelation. it is fast, open, detailed without being etched, and sings with the best I've herd so far.
Again, not a direct answer to your question but hope this helps.
Again, not a direct answer to your question but hope this helps.