Make-up Gain: 0 dB to 15 dB Frequency Response: 5 Hz to 80 kHz (+0 / -3 dB) S/N (20Hz - 20kHz): -96 dBV Distortion: <0.007% Input Impedance: (Aux) 20 k-ohms Limit (threshold): -40 dBV to +10 dbV Priority: Level 4 only (for Aux IN) Power: ± 24V DC Aux Muting Level: -50 dB Controls: Make-up Gain, Compression,Threshold, Compressor Bypass Connector: RCA type Weight: 2.8 oz. Dimensions: 1-3/8" W x 3-1/8" H x 3-1/2" D