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CardioidAseyer Electric Technology Nanjing Co D36B Pro

Cardioid Condenser Microphone

The Aseyer D36B is a large-diaphragm FET condenser microphone with a transformer-coupled output circuit.

D36B Pro CapsuleThe capsule is Aseyer’s proprietary large-diaphragm design. It is an edge-terminated, 36mm-diameter capsule with a single diaphragm made of 4-micron aluminum foil. It was designed to withstand the effects of humidity without compromising the mic’s performance.

D36B ProThe published frequency-response graph is nominally flat from 40Hz to 1kHz, with a broad and flat presence rise peaking at +4dB from 5–11kHz.

The polar graph shows only a single trace. The mic’s pickup pattern at this frequency (presumably 1kHz) is a slightly narrow Cardioid.

D36B Pro CircuitThe mic’s circuit is a simple design, using only about a dozen components (including the large output transformer).

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The mic was released in 2010.


Pickup Patterns Pads & Filters
Cardioid (20 mV/Pa; 25 - 20,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Capsule diameter: 36mm
Diaphragm gauge: 4 microns
200 Ohms (Low) Max SPL: 126 dB
Self-noise: 20.0 dB(A)
Weight Length Max Diameter Interface(s)
500g (17.64oz) 180mm (7.09'') n/a
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power

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