Open Box (Mint) 
Avalon AD2022 Pure Class A Dual Mono Microphone Preamplifier & DI

(Black)  Sku #J16090004002000

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This product has been discontinued but may be available as a Open Box item.

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Avalon

Further refinement of a studio favorite.

Avalon microphone preamps have been at the heart of professional and project studios for many years, and the AD2022 is the latest refinement of the essential design. 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 plated circuit boards for superior low level signal transfer.

The flagship of Avalon's line is popularly considered to be the VT-737sp, but depending on your preferences, the AD2022 may be the better choice for you. The sonic differences between the VT-737sp and the AD2022 can be compared to a spotlight (VT-737sp) and a flood light (AD2022). The VT-737SP has a "close-up" round sound while the AD2022 is very detailed and open, capturing more of the subtle sub-harmonics and reflections in the room.

Sonic excellenceThe Avalon M5 Pure Class A microphone preamplifier is the most musical, low noise full function preamplifier available today. Designed to optimize absolute signal integrity and musical performance, the M5 combines an advanced transformer input stage with twin high performance Class A cascode FET and bipolar discrete amplifiers for sonic excellence unequaled by lesser designs. The M5 is ideal for vocal and acoustic instruments, active DI input for the direct recording of bass, guitars and keyboards.

Features include state-of-the-art, balanced 100% discrete, Pure Class A signal amplifiers, practical user features and rugged hardware designed to deliver true high performance audio for many years.

Avalon preamplifiers have been in use since 1986. They have found their way into the world's most famous lead vocalists recording sessions and studios and been featured on thousands of the best selling (and sounding) albums and live performances.

Minimum signal path
Avalon's advanced true symmetry design offers high-voltage, large headroom, extended bandwidth and very low noise. The use of 100% discrete, Pure Class A signal amplifiers give the serious music professional unlimited sonic character and a natural harmonic detail that enhances the program material and becomes one with the music itself.

Features
  • Symmetrical Pure Class A design, two channels
  • Microphone and hi-Z instrument inputs
  • Gain switched 4dB steps plus +/- 3dB fine output trim
  • Selectable microphone input impedance matching
  • Low noise -126dB EIN
  • Ultra high quality, low-ratio, balanced input transformer
  • Balanced, high-current Class A output to +36dB
  • Large illuminated analog VU meters and twin peak LED's
  • Regulated phantom power supply +48v
  • Input polarity phase reverse
  • High headroom +36dB input before overload
  • Input -20dB pad for high level signals
  • Sealed silver relays for all signal routing
  • External AC 150w toroidal power chassis
  • Fully discrete Class A regulated audio power supplies
  • Deep, musical sound-stage, transparent amplification

Top quality transistor pre with detailed control. Order today.

 

AD2022 Pure Class A Dual Mono Microphone Preamplifier & DI Specifications:

  • 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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