Sound post

Often the pointed end of an S-shaped setter is sharpened with a file and left rough, to grip the post a bit better.

Soundpost adjustment is as much art as science, depending on the ears, experience, structural sense, and sensitive touch of the luthier.

The rough guidelines in the following section outline the effects of various moves, but the interaction of all the factors involved keeps it from being a simple process.

In the end, it is the ear of the person doing the adjusting that determines the desired location of the post.

Moving the sound post towards the tail piece decreases the loudness and adds a richness or hollowness to the tonal quality of the instrument.