What do you want in a bass ?

[Craig Regan]

How does f-hole placement effect the sound?

If the f-hole is moved closer to the center of the bass, is the sound deeper with more bass response?

Or does the bass have a more treble response if the f-holes are moved closer to the outer ribs?

This is just a theory; still looking for evidence.

[Arnold Schnitzer]

Originally Posted by Craig Regan

How does f-hole placement effect the sound?

If the f-hole is moved closer to the center of the bass, is the sound deeper with more bass response?

Or does the bass have a more treble response if the f-holes are moved closer to the outer ribs?

This is just a theory; still looking for evidence.

I would say you have that backwards. If the f-holes are close together, this necessitates a narrow bridge and then you have the bass bar and soundpost close together. When that is the case, the bass bar is constricted in its swinging. When the f-holes are farther apart, so can the bass bar and soundpost be, therefore resulting in a fatter, deeper sound. Also, when the f-holes are close to the corners you take advantage of the same effect that makes a bass player sound louder when playing out of a corner. I don't remember the name of this effect, but I bet Ken McKay does...

This does not mean you should place f-holes all the way to the edges, because your tonal balance will suffer. The f-hole upper holes should be spaced the same distance apart as the size of bridge you wish to use. What, design the instrument from the set-up backwards? Exactly.

[Martin Sheridan]

Thanks to all for input. Keep 'em coming.
martin

[Eric Rene Roy]

Originally Posted by Arnold Schnitzer

...What, design the instrument from the set-up backwards? Exactly.

Exactly what I did when designing our bass!