Tube microphonics

@onhwy61   I was thinking the same from the very beginning too. Plus my speakers are B&W 800 matrix. Top and bottom bass also. They act like having 2 subwoofers on ea speaker. 

I was thinking the same from the very beginning

                            And: you were correct.

       ie: https://upscaleaudio.com/pages/microphonics

     Keep in mind: parked next to your speaker systems, your amp's entire chassis will be boogieing, in tune with the music.

    How much time, effort and dinero, have many of us spent, in an effort to eliminate undesirable vibes, from our components' (passive/active) electronics?

          Of course: one's listening habits (ie: SPLs) would be a major variable.

                                               Happy listening!

Arc puts damping rings only on the smaller tubes  (In my case they’re 6922’s.) for a reason.  They are the most sensitive to microphonics. Having said that,  all tubes are subject and it can’t hurt to try tube dampers on your other tubes.

All the best.

@curiousjim

yes

in the amps i have had that run them in the input and driver stages, arc put dampers on 6n1p as well as 6h30p tubes as well... and of course on older models, the 6dj8's