Tube dampener questions


I bought some tube dampeners and on when I put them on the tubes on the amp and DAC it seemed to suck the life out of the sound so I removed them.

Doing some tube rolling and while the new tubes sounded good the vocals were disconnected somehow.  They seemed to distort during dynamics so I put a dampener on the input tube and it seemed to help at the cost of a little bit of life.

What is the correct way to use tube dampeners?
As vibration control are they like a guitar string and where they rest on the tube changes the frequency of the vibration?

Several burns later I think I got it right but I'm sure someone out there knows how to do this correctly.
128x128danager

Showing 2 responses by antigrunge2

Tube dampeners work best if the amp has good vibration control itself. That requires an effective combination of feet and tube sockets. In my experience EAT on small signal tubes and Duende Critura on everything else work best and their contribution is not negligible.

For once I find myself disagreeing with @Millercarbon: on small signal and rectifier tubes, rather than 'sucking out the life' good tube dampeners stop tubes from ringing and thereby creating a zing or liveliness that is patently false. A corrolary effect of the dampeners is a 'thinning' of upper bass, contributing to a more transparent image. At least this applies to my Svetlana Winged-C 6L6GC and WE435a tubes in the Wavac EC300b; that said I'll be the first to agree that it all depends on individual circumstances.

I agree with @atmashere's comments on output tubes.