The lyre was at first reconstructed as a single-armed harp with horizontal soundbox.
From the en.wikipedia.org
Paraguayan harps have a wide and deep soundbox which tapers to the top.
From the en.wikipedia.org
Feedback can also be reduced by making them with a solid block in the middle of the soundbox.
From the en.wikipedia.org
Typically, a steel-string acoustic guitar is built with a larger soundbox than a standard classical guitar.
From the en.wikipedia.org
The Tahitian ukulele, another variant, is usually carved from a single piece of wood and does not have a hollow soundbox.
From the en.wikipedia.org
This allows for easier access to the frets that are located on top of the soundbox past the heel of the neck.
From the en.wikipedia.org
Sound is produced by a steel needle picking up the vibrations from the groove and transmitting this to a special tone-arm soundbox.
From the smh.com.au
The so-called Guitarra Morisca, brought to Spain by the Moors, had an oval soundbox and many sound holes on its soundboard.
From the en.wikipedia.org
It has the thinnest soundbox and the smallest overall size of the major styles, making it very comfortable to play but also one of the quietest.
From the en.wikipedia.org
More examples
A resonating chamber in a musical instrument (as the body of a violin)
A resonator is a device or system that exhibits resonance or resonant behavior, that is, it naturally oscillates at some frequencies, called its resonant frequencies, with greater amplitude than at others. ...
The part of the harp that is box-shaped and through which the strings run; the woods of the soundbox work together to generate a sound when a string is vibrated; see HARP PARTS