tube question

dampers are for vibrations and coolers are for temperature..Two different ideas.Check out Herbies tube dampers....

The dampers help deal with microphonics,& the coolers help extend tube life. Effectiveness depends on the tubes & equipment. Only you can determine their worth.

Yes I think they are both of benefit, the damper can leep small microfonics from creaping in and the coolers keep the heat away from the center of the tube increasing tube life.

once your system reach certain level of "refinement", then both dampers and coolers will improve some tubes better, then others...means some tubes are more microfonic or just need some damping on the outside(the amp chassis also benefits from some sort of damping...as ART Q-dampers or similar devices...)