DPA 2011A Twin Diaphragm Cardioid Microphone

The 2011 Twin Diaphragm Cardioid Mic is a directional microphone. The distinctive sound of this microphone is well balanced. It bridges the gap between the extreme sound quality of our pencil microphones and our well-known Lavalier microphones.

Two opposite-facing miniature capsules are custom rebuilt inside this microphone. They are placed into a double-diaphragm, one-capsule composition. This combines the advantages of small capsules with the lower inherent noise achieved from a larger diaphragm area. These capsules provide fast impulse response and large frequency bandwidth. The capsules are loaded to our supreme preamps, which gives the sound more air and precision.

Technical Specifications

Directional pattern
Cardioid
Principle of operation
Pressure gradient, with interference tube
Cartridge type
Pre-polarized condenser, Twin Diaphragm Capsule
Frequency response
20 Hz - 20 kHz
Effective frequency range, +/-2 dB, at 30 cm (11.8 in)
50 Hz - 17 kHz with 3 dB soft boost at 12 kHz
Sensitivity, nominal, +/-2 dB at 1 kHz
10 mV/Pa; -40 dB re. 1 V/Pa
Equivalent noise level, A-weighted
Typ. 20 dB(A) re. 20 uPa (max. 23 dB(A))
Equivalent noise level, ITU-R BS.468-4
Typ. 33 dB (max. 36 dB)
Distortion, THD < 1%
134 dB SPL RMS, 137 dB SPL peak
Dynamic range
Typ. 117 dB
Max. SPL, THD 10%
153 dB SPL peak
Switchable attenuator, filters etc.
0 dB / -20 dB
Rated output impedance
200 OHM
Minimum load impedance
2 k OHM
Cable drive capability
100 m (328 ft)
Output balance principle
Impedance balancing with Active Drive
Common mode rejection ratio (CMRR)
> 60 dB
Power supply (for full performance)
P48 (Phantom Power)
Current consumption
2.8 mA
Connector
XLR-3M. Pin 1: shield, Pin 2: signal + phase, Pin 3: - phase
Color
Matte black
Weight
164 g (5.8 oz)
Microphone diameter
19 mm (0.75 in)
Microphone length
198 mm (7.8 in)
Maximum output voltage, RMS
> 5 V
Polarity
+V at pin 2 for positive sound pressure
Temperature range
-40C to 45C (-40F to 113F)
Relative humidity (RH)
Up to 90%
Sensitivity selection tolerance (at 1 kHz)
+/-1.5 dB