Lepy LP-2020A Power Amplifier Stereo HiFi Digital Audio Car Auto Motor Amp Tone/Direct switching allows for customized listening via separate Bass and Treble adjustments or original audio source signal can be passed through without enhancement. Built-in loudspeaker protection circuit triggers when the amplifier is turned on to protect speakers from high volume bursts of audio. Over-voltage protection circuit shuts down amplifier should input voltage exceed 14.4 Volts DC. State of the art design using surface mount components and advanced engineering for proven performance, reduced signal interference and long operation life. Equipped with 3A power supply for convenient using