Input:10 kΩ balanced bridging (may be connected unbalanced)Input Level:+4 dBu (nominal)Output:150 Ω balanced (may be connected unbalanced)Output Level:+4 dBuAutomatic Level Range:-16 to +14 dBuGate Threshold:-18 dBu (20 Hz to 3 kHz)Frequency Response (excluding AGC):20 Hz to 20 kHz (+/- 0.75 dB)THD+N (excluding AGC):< 0.15% (20 Hz to 20 kHz)Noise:< -90 dB (below +4 dBu output)Headroom: 18 dBIndicator (1):INPUT OVERLOADPower Requirement:GROUND-REFERENCED, 24 Vdc @ 80 mAOverall Dimensions:Height:1.42 in. 3.61 cmWidth:3.25 in. 8.26 cmLength:5.75 in. 14.61 cmAmbient Operating Environment:0 C to 55 C