The hollow box of a stringed instrument containing the soundboard. The soundbox enhances the volume and tone of the instrument by acting as a resonator.

See also [Eng.] soundbox; [Eng.] resonator box; [Fr.] caisse de résonance (f); [Ger.] Resonanzkörper (m); [Ger.] Resonanzboden (m); [Ger.] Schallkasten (m); [It.] cassa armonica (f); [It.] cassa di risonanza (f).