Durob Audio introduces under the brand name “Bermuda Audio Tuning” a series of new tube dampers for 19 – 22 mm tubes like 12ax and 12au7. The idea is simple: add mass to the tube through a more or less flexible connection made out of heat resistant silicon rings. Each ring is attached to the tube in a so-called “Bermuda-Triangle” configuration. The tube dampers are provided in different combinations:
2 aluminum rings / 1 silicon ring (minimum damping) € 15
Weight: 10,8 grams
Height: 11 mm
Outside Dia: 34,6 Dia
3 aluminium rings / 2 silicon rings (minimum – average damping) € 20
Weight: 16,9 gram
Height: 22 mm
Outside Dia: 34,6 Dia
4 aluminum rings / 3 silicon rings (average damping) € 25
Weight: 22,5 gram
Height: 26 mm
Outside Dia: 34,6 Dia
6 aluminium rings / 5 silicon rings (maximum damping) € 35
Weight: 36,2 gram
Height: 40 mm
Outside Dia: 34,6 Dia
The “Bermuda” tube dampers come with 2 versions of the aluminium rings (with low weight variation between each) so you do the maximum fine tuning possible.
The “Bermuda Audio Tuning” tube dampers are available in 2 colors (silver and black) and suitable for all tubes with a diameter of 19 – 22 mm.
Available now in wholesale supply (no retail packaging available yet). Please contact Durob Audio for more information!
PrimaLuna's Blog 
I have a heard conflicting statements regarding tube dampers. The only thing I’m sure is my total lack of knowledge. I imagine Herman has the opinion that will move the mountain, so what’s your verdict, kind Sir? I have the Dialogue Premium Integrated, and the Classic CD player, both superb. Should I harness up?
Hello Mark,
As with all tuning products, you can only verify if it works for you by …
trying it. Our ideal execution of this project would be that the client buys
a full assortment of Tube Dampers, experiment to the max, keeps what he
thinks is ideal in his situation and returns what he does not need. That
makes a local dealer around the corner such a good thing.