The Above Sounds...

The sounds made by the ESL 57 are sublime, in general.  However, as they age, they have been known to produce the odd fizz, hisssss, crackle, pop and rattle.  There are numerous reasons for this mulifarious flock of nuisance noises, so post here if you are experiencing the popping poltergeists in your treasured speaker and we'll see if we can sort it out.