The Alto HPA6 is a moderately priced and feature-laden 6-channel stereo headphone amplifier, offering 3 headphone outputs per channel, distributed between the front and rear panels.
The HPA6 features individual output control and level metering for each channel, in addition to Left and Right Mute switching, Mono/Stereo monitor switches, and Balance controls for mixing the Main and Aux input levels on each channel. The rear panel Main inputs and outputs are balanced, on XLR and 1/4" TRS connectors, and the power supply is a convenient dual voltage type.
The HPA6 is a low-noise, high-value solution for stage or studio headphone monitoring.