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ADK Berlin 47 Au

Pricing & Availability

  • MSRP: $1,499
  • Discontinued


Reviews & News

Berlin 47 Au Documentation

CardioidADK Berlin 47 Au

Cardioid Condenser Microphone

The Berlin 47 Au is a Cardioid FET condenser with a large-diaphragm capsule and transformer-coupled output. It was introduced around 2009 as part of ADK’s “Custom Shop” series; it was replaced in 2013 with the release of the T-Fet series of multipattern mics.

ADK/3-Zigma GK47 capsuleThe 47 Au uses the GK47 capsule from ADK’s 3-Zigma product line; this is a clone of the Neumann K47 capsule, voiced to sound like current production K47 capsules.

The circuit is made with high-quality parts, including Wima capacitors, a premium JFET, and an Oxford/OEP output transformer.

Two switches located below the headbasket allow for multiple configuration options:

On the rear of the mic, the first of two 3-position switch allows selection of two high-pass filters: -6dB/octave at either 100Hz or 160Hz.

A second 3-way switch controls the input pad: 0dB, -8dB, or -16dB.

The body is engraved with the “ADK Custom Shop” logo and the model name of the mic.

Permalink: ADK Berlin-47-Au

The mic was released in 2009.


Pickup Patterns Pads & Filters
Cardioid (18.8 mV/Pa; 20 - 20,000 Hz)
  • Pad: -8dB (Via Switch)
  • Pad: -16dB (Via Switch)
  • Filter: HPF: -6dB/octave @ 100Hz (Via Switch)
  • Filter: HPF: -6dB/octave @ 160Hz (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 27.3mm
Capsule diameter: 34mm
Diaphragm gauge: 6 microns
n/a Max SPL: 134 dB
Self-noise: 15.0 dB(A)
Weight Length Max Diameter Interface(s)
530g (18.70oz) 213mm (8.39'') 50mm (1.97'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48±4v

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