Sennheiser MKH 106 P 48 User Manual download pdf (Page 6)

Sennheiser condenser microphones produce relatively high output

voltages exceeding 1 volt at maximum sound pressure levels. This has

the advantage that even with long cables induced interference signals can

be disregarded. Also the internal noise produced by the microphone does

not contribute to the total noise level. The microphones are fitted with RF

filters which ensure that no high frequency signals from the microphone

can affect the external circuitry and that the microphone itself is protected

from high frequency disturbance. It is therefore not necessary, even

under the most difficult conditions, to take special precautions, such as

double screening of the cables or the provision of high frequency filters.

Senn heiser condenser microphones are polarised according to DIN

standard i. e. when apressure pulse strikes the capsule from the front.

Pin 1 of the DIN-connector (resp. Pin 2 of the Cannon-connector) goes

positive with reference to Pin 3. This should be considered when the

amplifier input plug is being wired for correct phasing.

Connection to amplifiers with balanced inputs

Phantom-powered microphones are generally to be connected to

balanced ground-free transformer inputs.

In this case the microphone is simply connected via the power supply

MZN 16 P48

resp.MZN 16P48-U (seeaccessories)tothe inputsofthe

amplifier.

Connection to amplifiers with unbalanced inputs

In many cases, for example most home-tape recorders, the input socket

is unbalanced. If a phantom-powered microphone is to be connected to

such inputs it is generally necessary to use a transformer. The secondary

of this audio-transformer may then be connected - one side grounded -

to the input. Proper voltage matching is achieved by selecting a suitable

transformer ratio.

Connection to amplifiers with high input sensitivity

If the amplifier being used has a very high input sensitivity i. e. when it is

normally intended for use with dynamic microphones, it can be necessary

to reduce the output voltage from the microphone by means of a voltage

divider. This should be built into the microphone cable at the amplifier

input. This way the large signal on the microphone cable is maintained up

to just before the amplifier, which helps to increase the signal to noise

ratio.

Connection to amplifiers with powering tacilities

If an appropriate voltage source is available in the amplifier the condenser

microphone can be powered directly. The voltage should be 48 volts

::!:

12volts. Itshouldbe stabilisedandfiltered,so thatthe unweighted

noise voltage is less than 1 mV.

According to the DIN standard the feed resistors should be 2 x appx.

6.8 kQ. The difference between the two resistors should be ~ 0.4 %.

The current taken by Sennheiser condenser microphones MKH . . . P48,

is appx. 2 mA. This means that approx. 7 volts are lost across the resistors.

i---rm ~

, L---, ,

: l. ~ :

, ,

c---I ' ~

Phantom-powering 48 V

according to DIN 45596

alternatively

48V 3,3 kQ

Frequeneyresponse

Operatingprlnciple

Dlreet,onaleharaetenstie

Sensitlvltyat 1000 Hz

Impedaneeat 1000 Hz

Signal to noise ratio to DIN 45 590

Maximal SPL

Operating voltage

Currenttaken

Temperature range

Output plug

Pinconnections

3 pin standard

plugtoDIN41524

1: Audio (+1;

Supply (+)

2: Ground. housing;

Supply I-)

3: Audio (-I;

Supply 1+) aeeording

to DIN 45596

Cableeonneetor

3 pm standardeonneetor

toDIN41524

e. g. T 3261001

19 mm0, 235 mm lang

160 g

dull blaekor satin nickel

40 . 20000Hz

pressure gradlent-line

transdueer

super-eardlold-Iobe

25 mV/Pa :t 1 dB

12.5 mV/~bar :t 1 dB)

appx. 10 Q balaneed,

ground-free

400 Q (200 Q for

SPL up to 30 Pa)

72 dB

50 Pa

48 V :t 12 V

approx.2 mA

-1O°Cto+70'C

3 pin XLR plug

1 Ground, housing;

Supply (-I

2: Audio (+);

Supply (+ I

3: Audio I-);

Supply (+ I aeeording

to IEC standard

Publ,eation268-14/2

3 pin eonneetorXLR-3-11 C

19 mm0, 250 mm lang

175 g

We reserve the right to alter speeifieation,espeeiallywith regardto teehnleal

improvements.

Frequency Response

20 50 100 200 5OC 1000 2000 5000 10000 20000 0/'

Standard response curve with tolerances MKH 416 P 48.

The original diagram is included with each microphone, measured from

50. .20000 Hz.

Accessories tor MKH 416 P 48

Microphone Clamp MZQ 415

The clamp can be fitted on tripods, booms etc. with %" threads.

Swivel Mount MZG 415

The swivel mount gives the possibility to use the desk stand together

with the microphone clamp or the shock mount for the MKH 416 P 48.

Desk Stand MZT 441

The MZT 441 is together with the swivel mount MZG 415 and the micro-

phone clamp MZO 415 or the shock mount MZS 415 a stable desk stand

for the MKH 416 P 48.

- -

10dBj

1 2 3 4 5 6 7 8 9 10

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Sennheiser MKH 106 P 48 User Manual Page 6

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