Louroe LE-220 Portable Test Amplifier

PTA-1 (Portable Test Amplifier) is a battery-operated audio amplifier kit used to conduct quality checks of microphone connections during installation and periodic field checks. It will work with a single microphone or at the output of a MLA-6 mixer/combiner. Contains a 2 1/2″ speaker and 6′ lead wires with alligator clips for testing connections. Two 9V batteries included.