Does soundbox tension affect volume and tone
Instruments- discuss specific features, luthiers, instrument problems & questions
Hey folks, this question might be poorly asked but here goes.
Does a soundbox that is under more tension have any additional clarity or additional volume? Is this the reason that 'lighter' builds are more responsive?
When I think about a musical saw, the volume seems to directly correspond to the amount of tension out on the saw blade.
Similarly, a washtub bass seems to be quite a bit louder on its high pitched notes, when the string is pulling the hardest on the tub.
I have been thinking a lot about where the strings are anchored on my dulcimers. Anchoring them to the fingerboard should apply an upward 'pulling' force on the area of the fingerboard with the pins. Meanwhile if the pins are anchored on an actual tailpiece of the box, they are stretched across the end of the fingerboard and are 'pushing' it down into the soundboard.
Does one of these produce more resonance than the other?
Here is a picture of a test dulcimer I built where the strings can be mounted to either the box or the fingerboard. (Sorry it's a bit ugly, form follows function) I am thinking of mounting both outer strings to the fingerboard, and the middle string to the box. My speculation is that this will put a huge amount of extra tension on the fingerboard, and the middle string will help prevent the fingerboard from being pulled off the soundboard. sadly I can't test this out until the local music shop opens back up in a few days.
Any information of how much tension matters, and how to properly harness that would be greatly appreciated
updated by @nate: 04/09/24 03:54:26PM