I tried a Rockerverb MKII recently that I liked quite a lot and was wondering how different in tone, if any, a Thunderverb is? Can't find any good clips of Thunderverbs's but obviously would prefer to play one in person.
I like some of the features on the thunderverb like the footswitchable attenuator which would be useful for live use, but overall the thunder seems like it is lacking a bit in gain on tap. I would rather have a little extra gain on tap that I don't use then to not have enough and or have to resort to a pedal. My rockerverb has a wide range of gain available and It has plenty of gain available and seems to have a bit more compression then the thunderverb. What I don't like is that the rocker can be bass heavy which is why I run it with the bass on like 1 or 2. The rockerverb can get heavier as it has an extra gain stage over the thunderverb. Thunderverb can get closer to the classic orange tones from the 70's also.
I liked the 100 watt Orange Rockerverb MKI. It has the 6v6's in the power section instead of the EL34's. Sounded really crunchy, and clear as far as distorted goes. I almost bought one.
I got to demo a TH30 vs. a Rockerverb MKI today and actually didn't care for either of them. I'll have to go try the R MKII I demoed at another place and see if it still sounds good on a different day. I agree the shape control on theTH30 was worthless. Either too scooped or too boxy, no good in-between. Also got to try a #4 and wasn't that impressed with that either. Thick and kind of soupy when the gain was up.
I still have the older mk1 rockerverb 50 that has 6v6 tubes, the mk2 rv was revised with el34 tubes. I actually prefer the overdrive channel better on the mk1, although the clean headroom isn't great with 6v6 but that's not a priority for me.