amp hiss impact on speakers

Even small amounts of endless hiss can build up and potentially eventually heat soak the magnet resulting in loss of gaussian electromotive force and melt the voice coil if continued long enough. Unless ribbons, they simply melt. The solution is auto room correction, GIK panels, and a REL sub, which are so good they can cure cancer.

@millercarbon
Room correction or anything else you mentioned does nothing to get rid of the hiss from the speakers.  What will a sub do to get rid of the hiss when it’s coming from the tweeters?  Is the person running tube electronics, if so, that is probably the cause.  

this is more a case of carbon build up