Beyerdynamic MM1-BEYER Specifications

A

PPLICATIONS

The MM 1 is a measurement microphone which has been
designed specifically for measuring sound reinforcement
and PA-systems. It is designed to work with spectrum
analysers for measuring frequency response and sound
pressure levels of loud speaker systems. The MM 1 is the
ideal microphone for the measurement of audio signals in
the research, development, for reverberation testings and
other applications.
The narrow tubular construction ensures that the micro­phone has negligable influence on the sound field so that
an increase in sound pressure is avoided with high
frequencies. A natural reproduction is achieved due to
the linear frequency response.

FEATURES

• Linear frequency response

• Omnidirectional polar pattern

• Calibrated open circuit voltage

• Narrow tubular construction

Germany

Theresienstr. 8
D-74072 Heilbronn
Tel. [phone] / 6 17-0
Fax [phone] / 617-224
E-mail: [e-mail]
Internet: www.beyerdynamic.de

United States

56 Central Ave.
Farmingdale, NY 11735
Tel. [phone]
Fax [phone]
E-mail: [e-mail]
Internet: www.beyerdynamic.com

Great Britain

17 Albert Drive
Burgess Hill RH15 9TN
Tel. [phone] / 258 258
Fax [phone] / 258 444
E-mail: [e-mail]
Internet: www.beyerdynamic.co.uk

MM 1

Measurement Microphone

Order # 449.350

OPTIONAL ACCESSORIES

GST 400 Microphone stand, 3/8", height 0.90 - 1.65 m, with G 400 boom . . . . . . . . . . . . . . . . . Order # 421.294

GST 500 Microphone stand, 3/8", height 0.85 - 1.60 m, with telescopic G 500 boom. . . . . . . . . Order # 406.252

ST 400 Microphone stand, 3/8", height 0.90 - 1.65 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Order # 421.286

ST 500 Microphone stand, 3/8", height 0.85 - 1.60 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Order # 406.643

WS 10 Windscreen,

charcoal grey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Order # 403.008

Photos are non-contractual. Contents subject to change without notice. Printed in Germany.

beyerdynamic)))) MM 1

FREQUENCY RESPONSE & POLAR PATTERN

This polar pattern and frequency response curve (measuring tolerance ± 1.5 dB) correspond to a typical
production sample for this microphone.

WIRING DIAGRAM

Frequency response ± 1.5 dB 0 dB 15 mV/Pa MM 1

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ECHNICAL SPECIFICATIONS

Transducer type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Condenser (back electret)

Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure

Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 - 20,000 Hz

(50 - 16,000 Hz ± 1.5 dB)

Polar pattern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Omnidirectional,

diffuse field calibrated

Open circuit voltage at 1 kHz . . . . . . . . . . . . . . . . . . . . . . . 15 mV/Pa ( -36.5 dBV) ± 1 dB

Nominal impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330 Ω

Nominal load impedance. . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 2.2 kΩ

Max. SPL at f = 1 kHz, k = 1%, R

L

= 2.2 kΩ . . . . . . . . . . . . . 128 dB

SPL

S/N ratio rel. to 1 Pa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 57 dB

A-weighted equivalent SPL . . . . . . . . . . . . . . . . . . . . . . . . . approx. 28 dB(A)

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 48 V phantom supply

Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 3.4 mA

Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . transformer balanced

Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-pin XLR male

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Length: 133 mm

Shaft diameter: 19/9 mm
Head diameter: 9 mm

Weight (w/out cable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 g

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