Beyerdynamic MM1 User manual

MM 1

Measurement Microphone

Order # 449.350

FEATURES

• Linear frequency response in the diffuse field / under 90°

• Omnidirectional polar pattern

• Calibrated open circuit voltage

• Narrow tubular construction

TECHNICAL SPECIFICATIONS

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

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

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

(50 - 16,000 Hz ± 1.5 dB)

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

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

Nominal impedance . . . . . . . . . . . . . 160 Ω

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

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

RL= 2.2 kΩ . . . . . . . . . . . . . . . . . . . 122 dB

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

A-weighted equivalent SPL. . . . . . . . approx. 26 dB(A)

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

Current consumption . . . . . . . . . . . . approx. 1.9 mA

Output. . . . . . . . . . . . . . . . . . . . . . . electronically 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

Omnidirectional,
diffuse field calibrated

SPL

APPLICATIONS

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.

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 Wind shield, charcoal grey . . . . . . Order # 403.008

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beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 204
[e-mail] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E6 / MM 1 (10.17)

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.
Each microphone is supplied with an individual 0° frequency response curve. Measured data can be requested via the following link:
www.beyerdynamic.com/mm1-register

Frequency reponse curve ± 1.5 dB 0 dB 15 mV/Pa MM 1

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beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 204
[e-mail] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E6 / MM 1 (10.17)