The ART MX225 Stereo Dual Source Five Zone Distribution Mixer is designed for remote volume control of multiple amplifiers or powered speakers in a distributed audio system. Two stereo sources are available to each of five output zones. Each input pair handles separate left and right balanced line level signals. Each output zone features independent level control from inputs 1 and 2, stereo/mono selector with mono indicator, LED level metering, and left and right balanced line level zone outputs. All audio connections are balanced FXLR audio connectors. The built-in power supply and single high 19″ rack mount format allow for easy installation and reliable operation.