Earthworks M30 Manual de Usario

Earthworks micrófono M30

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Technical Support

Should you have any questions regarding your

M30 microphone please contact us:

e-mail: Support@EarthworksAudio.com

phone: 1-603-654-6427 (9a.m. – 5p.m. ET)

For warranty and product return/exchange

information please refer to the back of the

enclosed Calibration Chart.

Earthworks, Inc.

37 Wilton Rd.

Milford, NH 03055 USA

Phone: 1-603-654-6427

Fax: 1-603-654-6107

http://www.EarthworksAudio.com

Made in U.S.A.

Made in U.S.A. Made in U.S.A.

MM30

3030 Measurement Microphone

Measurement Microphone

Measurement Microphone Measurement Microphone

Owner

OwnerOwner’s Manual

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Description

Earthworks M30 is an omnidirectional

(pressure) microphone designed and calibrated

for measurement purposes. It is a prepolarized

condenser microphone directly coupled to a

wideband, low output impedance preamplifier.

The M30 requires a standard 48V phantom

power supply. It features a linear free-field

frequency response from 5Hz to 30kHz (please

see the enclosed individual calibration chart),

very low handling noise, uniform polar pattern,

and very high SPL handling capabilities. Its

unique circuitry excludes the transconductance

of the input FET from the overall gain

structure. This means the sensitivity remains

very stable when the microphone is subjected to

variations in ambient temperature. The M30

meets or exceeds ANSI Type 1 requirements.

Each microphone is delivered with its own

calibration chart providing its individually

measured open-circuit sensitivity and the

frequency response curve. A computer file

containing the frequency response data for

importing directly into measurement software is

available from Earthworks, Inc. upon request at

an extra cost. A mounting clip and a calibrator

adapter are included with the microphone.

Applications

Earthworks M30 is ideally suited for

acoustical measurements including loudspeaker

design and quality control, sound system setup

and troubleshooting, room acoustics, or any

application where an accurate free-field

measurement microphone is required. Many test

systems manufacturers, such as EAW Smaart™

and DEQX™, are recommending M30

microphones. The wide linear minimum-phase

response and fast well-damped impulse

response (Fig. 2) make the M30 an excellent

microphone for loudspeaker design, especially

for time domain measurements.

The M30 is simple to operate. Connect the

microphone to a microphone preamplifier

supplying 48V phantom power using a standard

XLR microphone cable. Please allow up to one

minute for the microphone to settle. Plugging in the

microphone “hot” (phantom power already

present at the input) will not damage the

microphone, and is actually preferred for faster

settling. For optimum results we recommend

pointing the M30 toward the sound source.

This microphone has no removable parts.

Calibration

The microphone is calibrated at the factory

at 1 kHz (therefore independent of any

frequency weighting). The sensitivity in mV/Pa

is provided on the calibration chart. If on-site

calibration is required, use the enclosed ½”

adapter.

Specifications

Frequency response: 5Hz to 30kHz +1/-3dB

Polar Pattern: Omnidirectional

Sensitivity: 8mV/Pa (Typical)

Power Requirements: 48V Phantom, 10mA

Peak Acoustic Input: 150dB SPL

Output: XLR (Fig. 1)

Output Impedance: 100 , balanced Ω

(50Ω ea. pin 2 & 3)

Minimum Load: 600Ω btw. pins 2 & 3

Noise: 27dBA equivalent

Dimensions L x D 229 x 22 mm

(9 x .860 in.)

Weight: 225g (.5lb)

Compliant

Specifications are subject to change without

notice.

Fig. 1. XLR Output Connector Assignment of M30

Fig. 2. Impulse Response (Typical) of M30

Fig. 3. Polar Response (Typical) of M30, 1dB/div.

Especificaciones del producto

Marca:	Earthworks
Categoría:	micrófono
Modelo:	M30
Color del producto:	Zwart, zilver
Peso.:	2970 g
Ancho:	160 mm
Profundidad:	95 mm
Altura:	395 mm
Amable:	Blender voor op aanrecht
Número de velocidades:	2
Fuente-de-alimentación:	AC
Bandeja extraíble:	Ja
Activos:	600 W
Contenido contenedor/lata:	1.5 l
Rompehielos:	Ja
Pies antideslizantes:	Ja
Función de pulso:	Ja
Material-del-cuchillo:	Roestvrijstaal
cortador fino:	Ja
vaso de batido:	Ja