Dog pissed on speaker

Make the color uniform again by pissing on both speakers. Drink a few beers so you can get a solid stream of foamy urine and really soak'em down. That should also change the odor. Just don't eat any asparagus prior to pissing. That would be bad.

Playing some Taylor Swift music could enhance the experience.

@overthemoon 

I've told my dog I will shot him in the head if he attempts #1 or #2 within 10 feet of my speakers. It's worked so far but he hasn't gotten old and broken down like me yet.

I've had that same conversation with every pet I've had, it works surprisingly well. 

@miltonpyron Maybe contact "Klipsch" customer service/support for cleaning advise

...or stop playing your "Cats" album

A hot dogging is a process in which you cut a dog in pieces and you run him through a grinder and you stuff him and you bbq him. You did fail to do your due diligence.

You probably stumbled onto the next big thing in speaker improvement. It certainly can't be any worse than green cd pens or expensive USB cables or ethernet cables.