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Bridge adjusters are a simple yet ingenious device
that raise or lower one's strings in order to facilitate a more
desirable playing action. In countries where the seasonal variation
in atmospheric conditions are great enough to create a height movement
in the table of an instrument - bridge adjuster are obligatory.
In countries of a temperate climate players have traditionally
used "fixed-leg" bridges.
Now however, the versatility of using a bridge with an almost
infinite variation in its height settings is becoming much more
apparent. Jazz players who convert to their use are able to set
their string action spot-on to their favourite height, while
in a matter of seconds orchestral players are able to change
from an action suitable for the playing of Brahms or Beethoven
symphonies to one much more suited to say the playing of chamber
music or solo work.
In a word - No. Although this is somewhat surprising,
tests have been done that suggest that the aluminium adjusters
in particular, transmit the vibrations from the string in a very
similar manner to that of a good quality bridge. Just ask any player
who has had them fitted - they all rave about them.
Really - there are many, many more important aspects
of your instrument's set up and construction that need to be considered
and evaluated before you even remotely start to think about what
you have heard or read on a bass forum somewhere.
Well for instance - have you ever considered the
shape, position or length of your instrument's bass bar? No - I
didn't think so. The bass bar's function is to support the instrument's
front and transmit the sound of your strings along the front. It
really is quite fundamental to how an instrument responds.
Yes - you really could start questioning every aspect
of your instrument's construction and set up from the position
and fit of the soundpost to the angle that the neck is set at.
A general "guide" to fitting is included with the
adjusters. The job does involve a number of precise operations
- so if your DIY skills are not the very best - it is advisable
to have them fitted by an experienced luthier or repair person.
Here is a brief overview of the fitting procedure:
a) Set bridge up in a drilling jig.
b) Drill hole of appropriate width and depth through each foot
of the bridge.
c) Saw feet of bridge off at appropriate height.
d) Make adjustments to bridge height as necessary.
e) Insert a steel-retaining pin into each foot of the bridge at
the necessary height.
f) Insert smooth end of adjusters into foot end of bridge, assemble
and set up as required.
Fitting time takes about an hour for somebody that
knows what they are doing.
No. When fitting the adjusters a hole is drilled
through each of the legs - so it is essential that that the legs
of the bridge are fairly straight.
Bridge Adjusters really are an essential aid to
today's player - they just make every sort of playing so much easier.
The Contrabass Shoppe Ltd - has three different
designs of bridge adjusters available. They are made from aluminium,
brass and wood. The wooden adjusters are available in either boxwood
or ebony.
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