FEATURES: Input/Output 6 screaming-loud (150 mW/channel) headphone outputs (front panel) 6 unbalanced stereo ¼” line outputs (1 per channel); carries a copy of the channel mix 6 unbalanced stereo ¼” external analog line inputs (1 per channel) for “more me,” with trim controls 4 balanced ¼” analog line inputs (L/R Mix input pairs A and B) 1 balanced XLR Talkback input for external dynamic microphone 1 ¼” footswitch jack for hands-free Talkback operation Meters, Controls, and Features 2 stereo input channels (A and B) Channel controls External input level Headphone level control for each headphone output Mix A/B control (blends signals from input pairs A and B) Mono switch for external input Mute switch (mutes input pairs A and B) Master controls Input A level Input B level Talk button (momentary switch) Talkback-mic level Physical 1U 19” rack-mountable, rugged steel chassis Internal power supply with standard IEC connector