When I started PA I was persuaded by the loudspeaker manufacturer ( horns) that I should pair them with valve amps, Allnic the owner had a reputation in Germany for ‘Silverweld`’( should have asked what kind of reputation) , I had here their 300b set, 300B push-pull and another configuration 300B again something or other they were absolutely rubbish.
Possibly if you restricted your listening to a girl and guitar but otherwise just hopeless, there were reliability/quality control issues too, they lasted six months and that was five and half months too long.
You could literally not leave the room when those amps were ‘on’, awful.
Keith