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4

DUAL DIAPHRAGM CONDENSER MICROPHONE B-2 PRO User Manual

180°

-30 dB

-25dB

-15 dB
-20 dB

-10 dB

-5 dB

0 dB

30°

60°

90°

120°

150°

210°

240°

270°

300°

330°

250 Hz
500 Hz

2000 Hz

1000 Hz

4000 Hz
8000 Hz
16000 Hz

Polar pattern (omnidirectional)

20.0

10.0

-10.0

-20.0

50.0

100.0

1000.0

10k 15k 20k Hz

0.0

dB

Low cut

Frequency response (omnidirectional)

30°

60°

90°

120°

150°

180°

210°

240°

270°

300°

330°

-30 dB

-25dB

-15 dB
-20 dB

-10 dB

-5 dB

0 dB

250 Hz
500 Hz

2000 Hz

1000 Hz

4000 Hz
8000 Hz
16000 Hz

Polar pattern (figure eight)

20.0

10.0

-10.0

-20.0

50.0

100.0

1000.0

10k 15k 20k Hz

0.0

dB

Low cut

Frequency response (figure eight)

Specifications

7.  

Transducer type 

condenser, 1" dual-diaphragm

Operating principle 

pressure gradient

Polar pattern 

cardioid, omnidirectional  

 

or figure eight

Connection 

gold-plated balanced XLR connector

Open Circuit Sensitivity (at 1 kHz)

cardioid 

-36 dBV (0 dBV = 1 V/Pa), 16 mV/Pa

omnidirectional 

-37 dBV (0 dBV = 1 V/Pa), 14 mV/Pa

figure eight 

-35 dBV (0 dBV = 1 V/Pa), 18 mV/Pa

Frequency response 

20 Hz - 20 kHz

Level attenuation 

-10 dB (switchable)

Low-Cut filter 

6 dB/oct. at 150 Hz (switchable)

Max. SPL (1% THD @ 1 kHz)

cardioid 

138 dB (0 dB), 148 dB (-10 dB)

omnidirectional 

139 dB (0 dB), 149 dB (-10 dB)

figure eight 

137 dB (0 dB), 147 dB (-10 dB)

Equivalent SPL (IEC 651)

cardioid 

17 dB-A 

omnidirectional 

18 dB-A 

figure eight 

16 dB-A 

Signal-to-Noise Ratio 

cardioid 

77 dB, A-weighted 

omnidirectional 

76 dB, A-weighted 

figure eight 

78 dB, A-weighted

Nominal impedance 

<100 Ω

Load impedance 

>1 kΩ

Mains Voltage/Fuse

Supply voltage 

+48 V

Supply current 

3 mA

Physical/Weight

Dimensions 

Ø head: 56 mm, Ø shaft: 50 mm,  

 

length: 210 mm

Weight 

approx. 0.55 kg

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