Originally Posted by Crooner
You might also need to break in the speaker a bit. If you have access to a looper pedal, play some stuff through it and leave what you played looping for a day or so. Maybe even a little more. Folks, how long should one do this? A couple hours a day for a month? A week? A year?!? :eek
I have heard 40 hrs thrown around as a good break in period. I have used a drum machine including a bass line (not too loud), then put the amp in a closet overnight. I think the drums and bass speed the break in.
Also want to comment to the OP that I have not generally heard of people using Celestion speakers with blackface amps, though I haven't tried it myself. With tweeds, absolutely.