
Originally Posted by
istari_knight
Any ideas what that white stuff on one of the mids could be ? Looks like plaster dust but could be anything [hopefully nothing serious!]
having owned many vintage Celestions, I reckon it's glue overlap. Celestion were a bit slap happy back then and not too concerned with cosmetics. The brown deposit around the bass cones is glue too. As it's old, hard and probably oxidised, I think you'll find it scrapes off fairly easily.
It is impossible for anything digital to sound analogue, because it isn't analogue!