Bass: The portion of the audible sound spectrum that contains the lowest frequencies. These frequencies have the longest wavelength and require considerably greater electrical power to render them at their original strength. In a good modern speaker system, the bass portion of the response curve extends from as high as 500 hertz, down to 20 Hz.

 

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Bass: The portion of the audible sound spectrum that contains the lowest frequencies. These frequencies have the longest wavelength and require considerably greater electrical power to render them . . . View Full Definition

Contrabassoon: Double-reed woodwind instrument with the lowest range in the woodwind family. Also double bassoon.

Bassoon: The bassoon is a double-reed instrument made of wood. Its relative, the contrabassoon, heard here, is the lowest pitched and weightiest sounding woodwind instrument

Double Bass: Largest and lowest-pitched member of the bowed string family. Also called contrabass or bass viol