• Input Connectors : XLR
• Input Type : Electronically balanced/unbalanced, RF filtered
• Input Impedance : Balanced >50k ohm, unbalanced >25k ohm
• Max Input: >+22dBu balanced or unbalanced
• CMRR : >40dB, typically >55dB at 1kHz
• Output Connectors : XLR
• Output Type : Impedance-balanaced/unbalanced, RF filtered
• Output Impedance : Balanced 60 ohm, unbalanced 30 ohm
• Max Output : >+21dBu balanced/unbalanced into 2k ohms or greater
• Bandwidth : 20Hz to 20kHz, +/-0.5dB
• Frequency Response : < 3 Hz to > 90 kHz, +0/-3 dB
• Signal to Noise Ratio : Ref:- +4 dBu, 22 kHz measurement bandwidth
• Signal-to-Noise (Stereo Mode) : >94dB (Low Output), >93dB (Mid Output), >90dB (High Output)
• Signal-to-Noise (Mono Mode) : >94dB (Low Output, Low/Mid Output); >92dB (High/Mid Output); >88dB (High Output)
• Dynamic Range : > 106 dB, unweighted, any output
• THD+Noise : < 0.004% at +4 dBu, 1 kHz; < 0.04% at +20 dBu, 1 kHz
• Interchannel Crosstalk : < -80 dB, 20 Hz to 20 kHz
• Crossover Frequencies (Stereo Mode) : Low/Mid- 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Mid/High 450Hz to 9.6kHz (x10 setting)
• Crossover Frequencies (Mono Mode) : Low/Low-Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low-Mid/High-Mid: 450 Hz to 9.6 kHz; High-Mid/High: 450 Hz to 9.6 kHz
• Crossover Filter Type : Linkwitz-Riley, 24 dB/octave, state-variable
• Low cut Switch : Activates 40 Hz Butterworth, 12 dB/octave high-pass filter, one switch per channel.
• Phase Invert Switch : Inverts the phase at the output, one switch per output.
• x1 / x10 Switch : Multiplies 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 Switch : Selects stereo/mono and 2/3/4-way operation
• LF Sum Switch : Selects 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.
• Indicators : Stereo Operation (Green); Mono Operation (Yellow); Low Cut (Red-per channel); x10 (Green-per channel); Phase Invert (Red-per output)

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