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).
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