I owned Tannoy Arden, GRF, Canterbury and now Westminster Minster Royal GR.
They all works well with low watts amps regardless old or new version.
With current version I paired with low as 6 watts EL84 (Triode Labs) , Wyetech labs Shapphire 300B (18 Watts ) which one of my friend is uses on his Canturbury SE version as well. Shindo (18 Watts and 20 watts ) with no problem with mine.
Don't get fooled by spec as most people do. Try with your own ears.
The power is one thing, then there is dynamic swings, Damping factor , flat response. It's possible that an amp can have 20 watts at 1k but only 10 watts at 30 hz.
Just find the right amp
