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AD2022 PREAMPLIFIER SPECIFICATIONS |
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Circuit Topology: |
Twin cascode FET and bipolar low level signal amplifiers, high-voltage, 100% discrete, symmetrical Pure Class A |
Input Type and Load: | Transformer balanced low-ratio, 50, 150, 600 and 1k5 ohm input load selection |
Maximum Mic Level: | +36dB balanced XLR pin 2 hot (with -20dB passive attenuator) |
Maximum Instrument Level | +18dB at 100k ohms instrument input level, standard mono 1/4 inch jack |
Input Attenuator: | -20dB resistive pre transformer primary, sealed silver relay |
Phantom Power: | +48v regulated 50mA capability, sealed silver relay |
High Pass Filter: | Passive, variable from 30Hz to 185Hz @ 6dB per octave, sealed silver relay. |
Polarity Reverse: | Sealed silver relay on microphone input |
Gain Range Input: | +20dB to +64dB in 4dB steps |
Gain Output Range: | +/- 3dB variable conductive plastic potentiometer |
Maximum Output Level: | +36dB balanced 600 ohms, DC coupled, discrete symmetrical Pure Class A |
Output Type: | XLR connector, pin 2 hot |
Noise EIN Unweighted: | -126dB 150 ohm |
Noise 20kHz Unweighted: | -102dB |
Distortion THD, IMD: | 0.05% nominal |
Frequency Response -3dB: | 1Hz to 120kHz transformer limit |
System Bandwidth: | DC to 1MHz |
Output Meter: | High quality, illuminated analog VU meter 0dB = +4dB. |
Peak Meter: | Bi-color LED's 0dB and +20dB peak detection circuit. |
AC power supply B2T: |
External toroidal 100V to 240V, 50-60Hz
selectable, 150 watts maximum. |
Cables: | 90V ac, 4 pin male power input connector, B2T required, internal DC regulation |
Dimensions: | 19 x 12 x 3.5 in (482 x 305 x 89mm) |
Weight: | 15lbs (6.8kg) |
Dimensions - Shipping Carton: | 24 x 21.5 x 7.5 in (610 x 546 x 190mm) |
Weight - Packed: | 25lbs (11.4kg) |
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