Sanitarium wrote in
:

Guitar player here...

Me too. Over 35 years playing...

Speaking from experience, I have an 8 year old celestion greenback
in my carvin tube amp. Its by no means vintage, but it has spent
some time in the studio and this amp was my main gigging amp in
college. So its gone through the break-in period and to my ears
there IS a significant difference. Mids/highds are a little less
pronounced and the bass tones are slightly enhanced and sound more
resonant than my new carvin Vai 2x12 with new greenbacks. I sold
the 12s out of the Vai cab on E-bay and bought a used pair of Mesa
Boogie Black Shadow 12s (made by Celestion, re-badged for MB,
Basically a 90 watt vintage 30). Ahh much better and being that
they are used, someone else already broke them in for me.

I am not sure if I could hear a difference in a car audio sub
though... Probably not.

Just my thoughts,
Garrett

I think that guitar speakers and stereo speakers are two entirely
different animals. It's desirable to overdrive/distort a guitar
speaker, but not so with stereo speakers, of course.

Having overdriven and blown out more guitar speakers than I can count,
they certainly do "wear out", or at least change in tone/sound as you
"destroy" them over time. I also think that the tone differences are
greater in a guitar speaker line than in a stereo speaker line, i.e.,
one 12" Celestion will sound a _lot_ different than another supposedly
identical 12" Celestion. Not so true with stereo speakers.

2 more cents.

Regards,
Joe