Operation CHARM: Car repair manuals for everyone.

Base Level

BASS
^ Slide the BASS lever up in order to increase the bass response.
^ Adjust the BASS lever down in order to decrease the bass response.

TREB
^ Slide the TREB level up in order to increase the treble response.
^ Slide the TREB lever down in order to reduce the noise if the station is weak or noisy.