I just bought an F-50. Gets more of the tone I'm looking for.
I was looking for something closer to my JCM800 that has two channels and would work at bedroom volume.
The F-50 nails it. I will be switching the speaker to a Celestion Classic Lead 80.
I have a CL80 in my JCM800 1x12 combo and I tried it as an extension cab for the F-30.
More bottom end, fatter tone, cleaner crunch and no more spikey highs.