Features - Benchmark PRE420 Instruction Manual

Features

Four Transformerless Microphone Inputs
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Four Balanced Direct Outputs (XLR)
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Balanced Left and Right Main Outputs (XLR)
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Balanced Left and Right Control Room Outputs (XLR)
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HPA2™ "0-Ohm" 1/4" TRS Headphone Output
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Precision-Matched Monolithic Low-Noise Transistor Quads on Each Microphone Input
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High-Current High-Speed Low-Capacitance Phantom Protection Circuits
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Fully Protected Against Phantom Hot-Plug and Cable-Shorting Scenarios
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Balanced Transformerless Inputs and Outputs
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+48v Phantom Power Switch on Every Microphone Input
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40 Hz High-Pass Filter Switch on Every Microphone Input (12 dB/octave)
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20 dB Pad Switch on Every Microphone Input
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Matched 41-Detent First-Stage Gain Controls on Every Microphone Input
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60 dB Maximum First-Stage Gain, Adjustable to 70 dB
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22 to 60 dB Gain (pad off), 2 to 40 dB (pad on)
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+27 dBu Maximum Input Level (with pad), +7 dBu (without pad)
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+29.5 dBu Maximum Output Level on all Balanced Outputs
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+ 23.5 dBu Maximum Headphone Output Level
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MirrorPan™ Low-Distortion Constant-Power Pan Controls (1 per input channel)
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Solo Switches (1 per input channel)
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Mono/Stereo Solo Switch for Flexible Monitoring
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41-Detent Control Room/Headphone Level Control
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41-Detent Main Output Level Control
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Control Room "Mute on Headphone Insertion" Mode Switch (rear panel)
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Intensity Modulated Signal Presence LEDs (Green - 4 on direct outputs plus 2 on main outputs)
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+24 dBu Warning LED (Red – 4 on direct outputs plus 2 on main outputs)
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Solo Warning LED (Yellow)
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+48V Phantom Warning Indicators (Yellow - 1 per input channel)
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Power LED (Blue)
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Ultra-Quiet Linear Power Supply with Rear-Panel Input Voltage Selector
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Complies with FCC and CE Regulations
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RoHS Compliant
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PRE420 Instruction Manual – rev. E Page 6