Curved or arched body design
Unique to Twinwood Guitars is the body construction, 3.1mm tone wood is formed over curved X and lateral braces on the soundboard and back. The thinner sides gives the player more comfort without reducing the volume.
fretboard and bridge height
On most flat top guitars the strings are very close to the soundboard and require a scratchplate.
On our guitars the fretboard has a 2mm gap between the soundboard to ensure optimum clarity of sound. The bridge height is increased to allow the strings to sit 16mm off the soundboard and a scatchplate is not required.
Unique body style
Bevelled and scalloped perimeter
Another feature of archtop guitars and orchestral stringed instruments is the calloped perimeter. the profile thickness at the edges is thinner than at the centre.
Here the profile is emulated by thinning the tone wood around the perimeter of the soundboard to decrease the thickness by 0.9mm.
This allows the soundboard to resonate slightly more to give a warm and mellow and overtones.
Try out a custom handmade guitar and see and hear for yourself.
Neck Joint
It is now popular to bolt on the neck to the body of the guitar. At Twinwood Guitars the dovetail joint is still used in the same way as the glued joint but unique to Twinwood Guitars, the neck is secured by only one M6 bolt accessed though the sound hole and one external M6 bolt that also acts as a guitar trap hook.
The use of an external bolt is probably unique to Twinwood Guitars, and retaining the traditional dovetail joint is a belt and braces approach to ensure a secure fixing to retain the sustain when the strings vibrate.
Grand Auditorium Bracing Lay-out
The diagram shows the position of the internal structure of the Twinwood Guitar soundboard. The bracing, dovetail block and tail block.
'X' Bracing has been the popular choice for most Luthiers and the mass market guitar manufacturers such as C.F. Martin who invented this pattern at the turn of the 20th century. Other mass producers such as Gibson Guitars, Taylor guitars, Yamaha, Takamine, Washburn guitars have adopted the X bracing as standard.
Most 6 and 12 string guitars have a flat soundboard and back for ease of construction. However some luthiers and manufacturers incorporate a very slight radius on the backs of their guitars. It is recognised that the sound created is reflected and dispursed off the back of the guitar to enhance the sound quality.
This being the theory at Twinwood Guitars we have taken the radius arch to another level by increasing it and incorporation it into the soundboard and into the guitar back.
Grand Auditorium Bracing Profile
The diagram shows the three different bracing profiles,on the soundboard we use one lateral brace on the upper bout, one lateral brace on the lower bout and two X bracing components joined together to form the shape.
For the back of the guitar we use one lateral brace on the upper bout and three lateral braces on the lower bout.
The bracing is then adhered to the soundboard and the back to form the curve or arched soundboard and back