KT77's in BE100 - Thoughts? Opinions?

[rupe]

I tried JJ KT77s in my old Marsha 50... I liked them in it. Seemed to tighten up the bottom end a lot more and gave the amp more overall cut. I ended up liking the 6CA7 tubes the best. Those really added more overall bottom end.

Which 6CA7s? I never played the 50w Marsha but my 100w w/stock-spec tubes (JJ EL34) couldn't be any tighter on the low end...was this an issue with the 50 watters?

 

[se7en]

The amp has undergone some revisions. I think the transformers among other changes.