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Product Details
AD2022

Class A Dual Mono Microphone / Instrument Preamp

The AD2022 is Avalon's fourth generation of fully discrete, symmetrical Pure Class A microphone preamplifiers. The dual mono AD2022 includes the original sonic capabilities and transparency of the M2, M22 and M5 preamplifiers plus several additional features, including selectable microphone source loading for optimized cable/mic matching, improved high-voltage Class A regulated power supplies, two high Z instrument inputs, variable-passive high pass filter, quality/silver wiring and doubled plat

Product Details
The AD2022 is Avalon's fourth generation of fully discrete, symmetrical Pure Class A microphone preamplifiers. The dual mono AD2022 includes the original sonic capabilities and transparency of the M2, M22 and M5 preamplifiers plus several additional features, including selectable microphone source loading for optimized cable/mic matching, improved high-voltage Class A regulated power supplies, two high Z instrument inputs, variable-passive high pass filter, quality/silver wiring and doubled plat
Technical Specification
Weight 15lbs (6.8kg) Circuit topology: Twin cascode FET and bipolar low level signal amplifiers, Maximum output level: +36dB balanced 600 ohms, DC coupled, discrete symmetrical Pure Class A Noise 20kHz unweighted: -102dB Distortion THD, IMD: 0.05% nominal Frequency response -3dB: 1Hz to 120kHz transformer limit Dimensions: 19 x 12 x 3.5 in (482 x 305 x 89mm) Phantom Power: +48v regulated 50mA capability, sealed silver relay High Pass Filter: Passive, variable from 30Hz to 185Hz @ 6dB per octave, sealed silver relay. 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 Polarity Reverse: Sealed silver relay on microphone input Gain Range Input: +20dB to +64dB in 4dB steps Gain Output Range: +/- 3