Help - static noise in speakers

I did try moving the tubes to the other side, and even tried 2 new, extra tubes that I had on hand - no improvement.

So I guess I will wait for McIntosh to respond (even thought it took them weeks to respond the last time I had an issue)

The static noise could be caused by a cold solder joint/connection. Or possibly a poor internal wiring connector connection.

I did a quick look through the owner manual of the amp.... That amp is basically controlled by a computer.

May not do a thing, but did you try unplugging the amp from the wall outlet for a few minutes then plug it back into the wall outlet? 

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I tried unplugging the amp for about 5 minutes but that didn't fix it.  

I also just plugged in headphones and I don't hear the static. So does that mean it may not be the tubes, but maybe the speaker out connection?

Thanks for all the ideas everyone.

IMO, it's not the tubes. If it was the tubes, switching the tubes from one channel to the other the static would have followed the bad tube.

I also just plugged in headphones and I don't hear the static.

IMO, that says the preamp section is ok. That would include the tubes. The static is in the solid state amplifier section.

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I had a weird static noise coming through my speakers and discovered two things contributing to noise.  Ethernet  cabling near speaker wires and I also had to move e my ethernet switch away from my tube preamp.   Amp is tube.  

In my last house I had a Glade Plug In air freshener causing noise.   Whenever it released its scent I got a crackling noise through speakers.  Wasn't even on the same circuit.  Unplug any stuff like that while troubleshooting