One works perfectly, the other has a fuzzy noise when playing. I took the back off to see if there was anything obviously loose, but I couldnt see anything unusual *Not an Engineer*. Both main and tweeter work on both speakers..

Some research says its a crossover cricuit? swapping channels just shows that it's the speaker not the Amp. 

if you watch the video, I start off with one speaker (works as expected) and then move to the one with the fuzziness.