Re: PSA: Blow it out yer amps!
As the foam fills with dust it reduces air flow considerably, so it needs frequent cleaning in dirty air.
In the smoky bar scene, foam could clog up completely in a few months, blocking all air flow.
Foam can be useful for keeping larger stuff like floating tree debris out of the amps.
My take is it is less pain to blow the amps out once a year (or so) than to clean foam several times a year.
I have removed foam filters on all the amps I have ever owned after experiencing amps thermal out when the foam became clogged.
