Just got a 50 caliber plus in trade. it's rated at 50 watts, I think. But I also think it's a transitional model, as it has a quartet of el84s (as opposed to the pair of 6l6s that came in the later models). I have been told this makes the amp only 30 or 35 watts, in actuality. I need to know because I want to make sure I get a speaker strong enough for no speaker distortion. I can't figure out if a v30 is the way to go, or something rated higher.