Single Channel 500-Rack Microphone Preamplifier

Authentic Transparency for Unrestricted Creativity

Specifications

Minimum Gain: 14.5 dB, 1dB with Pad
Maximum Gain (continuously variable): 60 dB (70 dB in Ribbon Mode)
Frequency Response (-3 dB): < 10 Hz to > 200 kHz - typical -1.0 dB @ 10 Hz - typical -1.5 dB @ 200 kHz
Noise (60 dB Gain, 10 Hz - 30 kHz, Inputs common): -130 dB EIN
Total Harmonic Distortion + Noise (35 dB Gain, 10 Hz - 20 kHz bandwidth, +24 dBu Out): < .003%, Typical < .001%
Intermodulation Distortion (50 Hz & 7 kHz) 35 dB Gain:< .0006% +12 dBu Out < .001% +20 dBu Out
Phase Response (35 dB Gain, 50 Hz - 20 kHz bandwidth, +27 dBu Out):< 2 degrees deviation
Common Mode Rejection Ratio (35 dB Gain, 10 Hz - 20 kHz bandwidth, 100 mV C.M.): > 65 dB, Typ > 85 dB
Slew Rate (35 dB Gain, +24 dBu Out): > 25 Volts per microsecond
Maximum Input Level (20 Hz - 40 kHz): +12dBu @ 0.02% THD+N
Maximum Output Level: 1 kHz @ 35dB of gain, THD+N is: < 0.001% at +26dBu output < 0.05% @ +28 dBu output.
Phantom Input Impedance (1 kHz): 2,210 ohms
Output Impedance: 24.3 Ohms (x2)
Phantom Powering: provided by 500 rack
Dimensions/Shipping Weight: 1.5” W x 5.25” H x 6” D, 2 lbs.