|
|
#1
10-18-2020, 05:55 PM
|
|||
|
|||
Double top?
The notion of a double guitar top is counter-intuitive to my ancient notion of guitar tops; it seems to me the doubling the top would mute the sound. Explanations would be appreciated......................
|
|
#2
10-19-2020, 04:53 AM
|
|||
|
|||
|
__________________
2018 Buscarino Italia
|
|
#3
10-19-2020, 05:23 AM
|
|||
|
|||
|
Two thin layers of CF separated by light weight spacer. All RainSongs are double top guitars. It is a way to retain most of the strength of all CF at a fraction of the weight.
This is also done with wood for classical guitars as the above reference points out.
__________________
jf45ir Free DIY Acoustic Guitar IR Generator .wav file, 30 seconds, pickup left, mic right, open position strumming best...send to direct email below I'll send you 100/0, 75/25, 50/50 & 0/100 IR/Bypass IRs IR Demo, read the description too: https://youtu.be/SELEE4yugjE My duo's website and my email... [email protected] Jon Fields
|
|
#4
10-19-2020, 10:34 AM
|
|||
|
|||
|
It is all about strength-to-weight ratios. In crude terms, a sheet of plywood is far stronger than a similar thickness of just wood. As someone who studied karate for years, breaking a 1" pine board is fairly staightforward. But I would not try it with even a 1/2" sheet of plywood - that would shatter my fist long before the board gave way.
Two thin layers of wood supported by a layer of Nomex or Kevlar would be both light and strong and would have uniquely targeted vibration properties. For example, Greg Smallman of Australia has built incredible classical guitars with highly responsive double tops for many years, and the last I looked his prices start at $35K - if you can even get on the build list. That is *way* different than a "plywood" guitar from an Asian factory that sells for $150.
|
|
#5
10-19-2020, 11:21 AM
|
|||
|
|||
|
Cincy;
Thank you for the informative article. In counting a double top as a composite then a carbon fiber guitar could be double topped with wood and still be considered a composite instrument. The same might be true with the Canna guitar--it has wooden pieces/parts but the body and top are composite. Interesting stuff.
|
