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650 mm
or 640 mm?
Keep the following
rule at hand: If the distance between the tip of your thumb and the tip
of your little finger is equal or less than 9 in. when fully stretched,
use 640 mm.
Radiused or flat fingerboard?
The radiused fingerboard has been
around the acoustic and the electric guitar since day one. The same is
true for most instruments of the Stringed family of instruments (violas,
violins cellos, bass). Radiusing (image above) makes barre and left hand
stopping A LOT easier. The only drawback is that you will NEVER want to
play a flat fingerboard after that. If you are having your custom
guitar built, I am all pro radiusing the fingerboard. The standard
fingerboard is flat.
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Hauser 9 braces 3 woods fan
Quad top
The double top V1 with the 9
braces Hauser fan, was developed and introduced by Master Luthier
Manuel Contreras the II at the end of the 70s and reached its peak in the
80s. In this Variation of the Double top, a second top is located halfway
between the main top and the back. It is held in place by means of little
Mahogany bridges located above and below the second top along the inner
part of the sides (frames 1 & 3). The second top rests on the upper
bridges and once it is glued on each little bridge (frame 2), a second
bridge is glued on top of the preceding corresponding bridge below the
second top (frame 3). This second top vibrates a fraction of a second after
the first one creating an immense sustain and punch using the air moving
inside the sound box and thus creating a multiplying effect of the sonorous
waves.
Preparation of the Contreras style doubletop
(made in Rosewood)
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