Allnic Absorb-GEL™
Vacuum tube damper / adapter



Allnic Absorb-GEL™ Vacuum Tube Damper is an innovative solution resulted from several years of extensive research and experiments by Allnic Audio Lab, significantly reducing vacuum tube micro-phonic noise. Absorb-GEL™ Vacuum Tube Dampers are easy to install and reversible. Just take away your vacuum tube from the socket, insert Absorb-GEL™ Vacuum Tube Damper into the socket, then plug in the tube. That is all. Now you will have a clearer sound.


Note: Allnic audio has decided not to sell the Absorb-gels anymore. They are now used only inside their own amplifiers.









Absorb-GEL™ miniature 9 pin Vacuum Tube Damper

Fits ECC83, 6922, 12AX7, D3a
.
Permissible heater current 0,8 A
Diameter 27 mm, (extra) height 20mm

Reviews:
Chris B. (English)
DHT Rob (Nederlands)



Not available anymore










Absorb-GEL™ Octal 8 pin Vacuum Tube Damper

Fits 6SN7, 6SL7 etc.
Not suitable for output tubes like EL34, 6550 (these become too hot)


Not available anymore







Allnic Absorb-GEL™

Vacuum Tube amplifier is an excellent choice of high-end audio equipment for its smooth, detailed and realistic sound. However depending on it's type vacuum tube generates "micro-phonic noise" resulted from its vibrations and resonance's. The micro-phonic noise is prodded and escalated by surroundings such as amplifier chassis, tube socket and loudspeakers.

The micro-phonic noise is depending on vacuum tube type and brands. Basically weak construction and higher mutual conductance generates higher noise.

There have been varies efforts to reduce micro-phonic noise of vacuum tubes, such as rubber rings and metal caps, although its result was not outstanding.

Absorb-GEL™ Vacuum Tube Damper is an innovative solution resulted from several years of intensive research and experiments by the Allnic Audio Lab., significantly reducing vacuum tube micro-phonic noise. All the components and materials of Absorb-GEL™ Vacuum Tube Damper were carefully selected and customized through repeated experiments. Absorb-GEL™ Vacuum Tube Damper isolated and floats tubes from primary vibration transmission media, such as amplifier chassis or tube sockets. And Absorb-GEL™ Vacuum Tube Damper also absorbs direct airwaves from loudspeakers.

Successful noise reduction of Absorb-GEL™ Vacuum Tube Damper was proven in our laboratory test and various field tests by high-end audio listeners. Fig. 1 is a snap-shot of oscilloscope showing dirty noise when tube amplifier chassis was impacted. Fig. 2 shows very clear output when Absorb-GEL™ Vacuum Tube Damper was used under the same impact on tube amplifier chassis. Laboratory measurement easily shows noise reduction rate up to 1/100 (-40dB).