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User Manual for Avalon Design AD2022 Microphone Preamp Click to enlarge the picture
Contents of the user manual for the Avalon Design AD2022 Microphone Preamp
- Product category: Microphone Preamps Avalon Design
- Brand: Avalon Design
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Avalon Design Microphone Preamps
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User manual for the Avalon Design AD2022 Microphone Preamp contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Avalon Design product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Avalon Design user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Avalon Design product will considerably shorten its lifespan!
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Product description The AD2022 Microphone Preamp 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. These include selectable microphone source loading for optimized cable/microphone matching, improved high-voltage Class A regulated power supplies, two high Z instrument inputs, variable-passive high pass filter and doubled plated circuit boards for superior low level signal transfer. The AD2022 features split low-ratio primary windings which are carefully combined within a custom mu-metal core for extended smooth frequency response and very low distortion. The input signal selector, high pass filter, polarity-phase reverse, +48v power and the 20dB input attenuator all utilize local sealed relay operation. A variable, passive high pass filter provides a minimum phase shift design while eliminating low frequency rumble, wind noise and mechanical vibration at sub sonic frequencies. Two 100% discrete, high-voltage, symmetrical Pure Class A signal amplifiers are utilized per channel of the AD2022. The first operates in a cascaded-cascode FET configuration while the second stage amplifier is fully bipolar. The twin amplifiers share the total available gain requirement. This shared architecture increases the high level headroom capability, improves transient response and doubles the internal bandwidth of the ultra-high performance pure Class A signal amplifiers. High-current DC coupled, Class A discrete amplifiers are utilized for the output drive interface with +36dB capability into all known loads. Two large, high-quality analog VU meters indicate accurate signal readings while bi-color LED's offers peak indication at 0dB and +20dB. - Symmetrical Pure Class A design, two channels
- Microphone and hi-Z instrument inputs
- Selectable microphone input impedance matching
- Minimum audio signal path
- High performance input transformers
- DC coupled Pure Class A outputs
- Variable passive high pass (bass cut) filters
- Input polarity phase reverse
- Input -20dB pad for high level signals
- All signal routing with sealed silver relays
- Large illuminated professional VU meters
In the Box Avalon Design AD2022 Microphone Preamp External Toroidal 100-240V, 50-60Hz Selectable BT2 Power Supply 8' 4-Pin AC Cable 8' Power Cable 1-Year Warranty Table of Contents
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Technical parametersAvalon Design AD2022 Specs | Number of Channels | 2 | | Inputs | 2 x XLR balanced
2 x XLR unbalanced
2 x 1/4" TS instrument input (front panel) | | Output | 2 x XLR balanced | | Phantom Power | +48v regulated 50mA capability | | Multi Function | DI for guitars, bass and keyboards | | Gain Range | 0dB to +64dB | | Maximum Output Level | +30dB, unbalanced 600 ohms | | Frequency Response | 1Hz to 120kHz transformer limit | | Noise | EIN: -126dB 150 ohm | | Dimensions | 2U rack mount, 12" deep | | Specialties | Passive, High Pass Filter, variable from 30Hz to 185Hz @ 6dB per octave, sealed silver relay | | | | Package Weight | 29.15 lb | | Box Dimensions (LxWxH) | 24.0 x 22.0 x 8.6" |
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