Neumannberlin TLM 67 User Manual download pdf (Page 55)

TLM 67

Electrical features

The letters “TLM” stand for “transformerless microphone”.

In the TLM 67, an electronic circuit is used rather than a

conventional output transformer. Like a transformer, the cir-

cuit ensures good common mode rejection, effectively sup-

pressing interference signals that affect the balanced modu-

lation line. The microphone can operate at sound pressure

levels of up to 105 dB without distortion, and has a dynamic

range of 94 dB (A-weighted), without the use of the pre-

attenuation switch.

Filter and pre-attenuation

The pre-attenuation switch on the back of the microphone

can be used to reduce transmission levels by approx. 10 dB.

It should be used only when there is a risk of overloading

following devices due to very high sound pressure levels. Use

of the switch does not increase the dynamic range of the mi-

crophone, but rather shifts it by 10 dB, to higher sound pres-

sure levels. The other switch on the back of the microphone

can be used to change the cutoff frequency of the built-in

high-pass filter, so as to suppress the effects of impact sound

and wind noise, or to compensate for the proximity effect.

Operational reliability

Elastic mounting of the capsule supplies protection from the

transmission of structure-borne noise. If required, the EA 87

elastic suspension and WS 87 windscreen are available as ac-

cessories, for further suppression of structure-borne and wind

noise. The PS 15 or PS 20 a popscreen can be used if the

microphone is to be addressed at close range.

Features

• Sound characteristics based

on the legendary U 67

• Three switchable directional

characteristics

• Switchable high-pass filter and

pre-attenuation

• Transformerless circuit design

• New dual-color exterior design

Application Hints*

• Extremely versatile

• Vocal microphone (soloists and

background choir)

• Broadcasting, dubbing and

voiceovers

• Overhead microphone

• Spot microphone, and suitable

e.g. for strings, especially cello

and double bass, as well as

piano

Delivery Range

TLM 67 microphone, Case

Catalog No.

TLM 67 ............................................................... pgr ............................................ 008605

* These are just some of the most common applications. We recommend additional experimentation to gain maximum use from this microphone.

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Neumannberlin TLM 67 User Manual Page 55

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