Nope, I have great amps: 5f2a - in a Blues Jr. cab with a 12 Red Fang. 5e3 - with a '59 Jensen P12Q. 5d4 - Special cab with a 10 and a 12. 5e6a - 4x10 50's P10Rs. I prefer an amp that has a more direct route to the speaker so as far as the tremolo goes, I'd rather use a wiggle box. I'm sure that some people will have fun with them. It is an attractive package, but as far as the innards go, I'd gut it.