The EZ-ADA4 is a stereo audio distribution amplifier with gain adjustment and audio level metering. The input is connected through RCA jacks or a MINI jack. A front-panel knob adjusts for high or low input levels using the left and right channel LED VU meters. Four stereo outputs are provided on RCA jacks. The EZ-ADA4 is used in stores, houses of worship, restaurants, clubs, security systems and commercial AV systems.