Sound box

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A sound box or sounding box, (sometimes written soundbox), is an open chamber in the body of a musical instrument which strengthens the resonance of the instrument's tone by amplifying its vibrations.

A sound box is found in most string instruments. The most notable exceptions are some electrically amplified instruments like the solid body electric guitar, and the piano which uses a sound board instead. Drumhead lutes such as the banjo or erhu have at least one open end of the sound box covered with animal skin (or a skin-like acrylic material).

[edit] See also

• Resonance chamber