B-V 30

Common name: Maihak B-V 30a

Production Status: Discontinued / Vintage

The B-V 30 is a bottle style tube condenser microphone closely realated to the Neumann CMV 3a and Telefunken E la MZ 028/1. The first version of the B-V 30 (radio designation B-M1-1) up to 1949 features a Telefunken RV2 P800 valve then with the release of the B-V 30a in 1950 a Hiller MSC 2 coupled with a Maihak output transformer. Capsules are interchangeable with omnidirectional  cardioid and bidirectional polar pattern responses (version of the Neumann M5, M7, M8 and M9) as well a dual pattern capsule, The B-M15 switchable between cardioid and omnidirectional. These were manufactured by  MWL (Hans Karl Freiherr von Willisen) for the NWDR (Nordwestdeutscher Rundfunk). Specifications refer to the cardioid capsule.

Electrical Characteristics

Frequency Response
40Hz - 16 kHz
Output Sensitivity
mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
300Ω
Recommended Load
1kΩ
Powering
Proprietary unit
Supply Current
2.5 mA
Alternative Powering
Tube Model
Hiller MSC 2

Switchable Options

Pad
Filter/EQ

Physical Characteristics

Connector
Ela J 201/1 (5-pin)
Connector notes
Available Colours
Weight
2009 g
Length
290 mm
Min diameter width
Max diameter
80 mm
Depth

Accessories

Included
Power supply and microphone cable.
Optional