Input ConnectorsXLRInput TypeElectronically balanced/unbalanced, RF filteredInput ImpedanceBalanced >50k ohm, unbalanced >25k ohmMax Input>+21dBu balanced or unbalancedCMRR>40dB, typically >50dB at 1kHzOutput ConnectorsXLROutput Type Impedance -balanced /unbalanced, RF filteredOutput ImpedanceBalanced 200 ohm, unbalanced 100 ohmMax Output>+21dBu balanced/unbalanced into 2k or greaterBandwidth20Hz to 20kHz, +/-0.5dB Frequency Response< 3 Hz to > 90 kHz, +0/-3 dB Signal to Noise RatioRef: +4 dBu, 22 kHz measurement bandwidthSignal-to-Noise (Stereo Mode)>94dB (Low Output), >92dB (High Output)Signal-to-Noise (Mono Mode)>94dB (Low Output), >93dB (Mid Output), >92dB (High Output)Dynamic Range> 114 dB, unweighted, any outputTHD+Noise< 0.004% at +4 dBu, 1 kHz; < 0.04% at +20 dBu, 1 kHz Inter. channel Crosstalk< -80 dB, 20 Hz to 20 kHzCrossover Frequencies (Stereo Mode)Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)Crossover Frequencies (Mono Mode)Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Mid/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)Crossover Filter Type Link witz - Riley, 24 dB/octave, state-variableLow cut SwitchActivates 40 Hz Butter worth, 12 dB/octave high-pass filter, one switch per channel.Phase Invert SwitchInverts the phase at the output, one switch per output.x1 / x10 SwitchMultiplies the low-high(mono: low/mid and high/mid) crossover frequency range of the front-panel markings by a factor of 1 or 10, one switch per channel.Mode SwitchSelects stereo 2-way or mono 3-way operation and disables all LEDs for controls that are non-functional in the selected mode.LF Sum SwitchSelects normal (stereo) or mono-summed low frequency operation and disables Ch 2’s low output phase invert LED to indicate that this output is not operational in the LF sum mode.IndicatorsStereo Operation (Green); Mono Operation (Yellow); Low Cut (Red-per channel); x10 (Green-per channel); Phase Invert (Red-per output)Operating Voltage100 VAC 50/60 Hz; 120 VAC 60 Hz 230 VAC50 HZPower Consumption 15W