Hi guys,
I have had an idea to do a build similar to a Godin Multiac. It would be strung with acoustic steel strings and essentially have a completely hollowed out guitar body except for an area under the bridge. I would leave a good mass of wood to support the bridge but everything else around it would be chambered. Guitar would be roughly Les Paul sized, maybe a little larger. A thin top would go on top of the hollowed body. I may have a soundhole in the upper bout or maybe not.
My question is: as I want to avoid doing any bracing to the top, how thin can the top be? Will the area under the bridge be enough to allow me to use a top as thin as with a real acoustic but without bracing? I'm guessing probably not - if so, is 1/4" for a top the minimum? I believe that's what thinlines usually have.
Although I realize that this guitar is not going to sound the same as a real acoustic because of the construction differences, body thickness, etc, I assume that using a thinner top will allow more resonance and volume. Please correct me if I'm wrong on this or if it would make little difference.
I also realize that using a thinner top makes the guitar more fragile in terms of dents and breakages, etc. I am OK with that.
It is still early days and I haven't researched this properly yet, but many thanks for the help!