Best tube integrated with Merlin TSM-MMI?

I forgot about the Joule VAMP, just don't see it that often. Granyring? Anthony? is the VAMP switchable between Class A and Class A/B - the spec sheet seems to suggest so, though it may be a factory setting - it would be nifty to switch from 20 watts Class A to 100 Watts Class A/B when needed.

So --

Ars Sonum Fila
Manley Stingray
Cary SLI 80
Joule VAMP

I would also think CJ MV55[?] EL34 integrated would be worth considering.

I never knew the Vamp to be switchable, at least not the integrated version. I had a big interest in the Vamp a few years ago and I think I would have recalled this feature. Then again...

The Vamp could not be switched, at least the two I have owned in the past. Ran it with Merlin VSM's going back about 7-8 years ago now.

Wish I had kept it as it is a steal for the money used.

Is it possible it was Class A/AB with 20 watts in Class A? The spec sheet shows both that spec and 100 watts AB. Sure would explain why some consider it to be such a nice hybrid integrated.

First 20 watts is Class A.