Hey Bob, I tighten down all the nuts around the speaker, and that seem to fix the distortion.
The nuts where really loose and probably haven't been tighten since 1967. Anyway, all seems to be well. Thanks again for your help.
That makes sense to me.
Nice B-15's Ron, I sold one a few years ago, gotta to get some more. I want a B-15S, it's a 55 watt B-15 with 7027A's in it. Also want a B-18.