I do also have easy access to the FB25, so I'll include a video of that one below.
Comparing the 2, obviously the 100 is MORE. More of everything. More gain (like a shit load more haha), more low end, more beef, way more mids. The bottom and bright buttons don't exist on the 25. Bright only seems to do anything on the clean channel, and I prefer it off. Bottom ends some sub lows or something that flubs up the distorted tone, so I prefer that off, too. The mid boost on the 25 is awesome. Takes it from super scoopy to more 5150-ish, but the 100 already has way more mids, so for me, the mid boost adds TOO much. But I can for sure see how some might like that. It's not way over the top, but it's a bit much for what I like.
Anyway, the amp fucking rules! I should've kept the first one, but I really don't remember it sounding this good. I think Engls probably need V30s to really sound their best. Pretty sure I had a Vader with V12s at that time...but through the Mesa cab, fuck yeah!!



Low volume video I did last night. And then a better one from just now. Both of these are using a Shure MV88, which is an iphone condenser mic.