Speaker test music Left Right Favorite

Description

How to use music to test Left and Right speakers, test Left/Right speakers, open this song or download this song to USB, plug in DVD player, connect to amplifier, 2 speaker amplifier and press L/R button on amplifier, it will: - Stereo: when running this speaker, sometimes running the other speaker - Mono Left, Mono Right: when singing, sometimes not. If Left does not sing, press Right to sing and vice versa. - Mix Mono: Both channels mix together, singing equally loud.