User's Manual

MD 300

Dynamic microphone MD 300

The MD 300 is a high-quality dynamic microphone with a fre-

quency response of the transmission factor that has been

optimized for intelligibility. It is featured with an especially

accurate resolution at high frequencies and a well-balanced

low-frequency transmission. It is insensitive to movements of

the recorded sound source thanks to the cardioid polar pat-

tern.

The MD 300 is useful as close-talking microphone for an-

nouncers of broadcasting services as well as for high-quality

recordings of vocalists and instrumental soloists during live

per formances.

Acoustical speciﬁcations

A dynamic capsule with a cardioid polar pattern is inserted

in the MD 300 as sound transducer. The frequency response

has been optimized for low recording distances with an ac-

centuation of approximately 2 dB between 2 kHz and 8 kHz to

raise the speech and high-frequency presence. The change

of the low end frequency response caused by the proximity

effect is well-balanced without a very strong overemphasis

at small microphone distances.

Electrical speciﬁcations

The sound transducer inserted into the MD 300 runs accor-

ding to the moving-coil principle. The microphone is connec-

ted by a standard 3-pin XLR-male plug with a symme-

tric connection assignment. Because of the balanced low-

impedance output, the MD 300 can be used for longer cable

length with negligible distortion. The polarity of the micropho-

ne is in accordance with DIN 60268-4.

Mechanical speciﬁcations

The housing of the microphone is equipped with an inte-

grated internal thread at the plug side that allows ﬁxing ela-

stic or inﬂexible holders, which are available as accessories.

This allows using the microphone with microphone arms or

stand mountings and as handheld microphone. The capsule

is mounted elastically in the housing to attenuate solid-borne

sounds and impulses. If a higher attenuation of such inﬂu-

ences is required, it can be achieved by elastic holders and

suspensions, which are available as accessories. Because

of the weight of 330 g without accessories, the MD 300 can

be used for longer periods as handheld microphone with ne-

gligible distortion.