Sound amplifier definition

Sound amplifier means an electronic device used to amplify electrical outputs, including but not limited to those from microphones, phonograph players, compact disc players, tape decks or musical instruments.
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Sound amplifier means a sound amplifier is defined as any mechanically operated instrument or device, and all parts or accessories connected thereto, which amplifies or increases the volume of sound by the use of electricity, when used separately or in connection with any radio, phonograph or similar sound-producing instrument or device, and includes, among other things, public-address systems, loudspeakers, sound trucks or vehicles equipped with loudspeakers, but does not include the standard automobile radio, when used as such.
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