AW, you'll probably be better off with a transistor amp driving your speakers. The 50's are not very efficient and have a nominal impedance of 4ohm which makes me think they they are not going to be tube friendly.
You could try a big push-pull tube amp, but I doubt it would be worth the effort.
Regards
Paul
You could try a big push-pull tube amp, but I doubt it would be worth the effort.
Regards
Paul