Using the Classic 30 here and it's just what your looking for. I'ts got the Blue Marvel speaker in it, but many change it out (I'm fine with it) as well as modding the tubes...SEVEN to be exact.
I tried the Blues Jr. side by side at SA and the Classic won hands down...bigger speaker and more watts helped I'm sure, just had the overall tone we were looking for.
Great clean to overdriven sound, ala 1970's.