Never had a Kemper but I gigged Fractal and Helix for years. I would bet my house that no one could discern tubes from the modeling I’ve used live.Has modeling improved much since the Kemper?
No, I have the SV and I’ve owned several Super Leads—original and reissue—and several mid 70s JMPs. IMO the SV is a nice approximation of the SL, a JMP is brighter and more aggressive as you said.Wouldn't that just be the SV20?