Perfect for studios, practice spaces, quiet stages, and more, the HM Series offers everything you need whether it is just splitting a single signal to your band, or more complex headphone distribution. • 4 Channel Headphone Amplifier • L/R Main stereo inputs plus L/R stereo outputs • 7-segment LED metering per channel plus Main • 3 headphone outputs per channel • Aux input on each channel with balance control to mix main and aux signal  • Mute and stereo/2-ch mode switches per channel • 12 total headphone outputs • Built-Like-A-Tank construction