Electr. An appliance or circuit which amplifies. (See amplify, v. 2b.)

= loudspeaker, n.

A directional microphone with a heart-shaped pattern of sensitivity (cf. sense B. 1b).

An amplifier, esp. for an electric guitar.

= ghetto blaster n. at ghetto, n. adj.compounds 2.

a large portable stereo radio (and cassette player), esp. one on which (black) popular music is played loudly.

= drum trigger n. at drum, n.1 compounds 2.