Sennheiser condenser microphones producerelatively highoutput
voltages exceeding 1volt at maximum sound pressure levels. This has
theadvantage thateven with long cables induced interference signals can
bedisregarded. Also the internal noise produced bythe microphone does
not contribute to the total noise level. The microphones arefitted with RF
filters which ensure that no high frequency signals from the microphone
can affectthe external circuitry and that the microphone itself is protected
from high frequency disturbance. Itis therefore not necessary, even
under the most difficult conditions, to takespecial precautions, such as
double screening of the cables orthe provision of high frequency filters.
Sennheiser condenser microphones are polarised according to DIN
standard i. e.when apressure pulse strikes the capsule from the front.
Pin1 of the DIN-connector (resp. Pin2 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.
Connectionto amplifierswith balanced inputs
Phantom-powered microphones aregenerally to be connected to
balanced ground-free transformer inputs.
Inthis case the microphone is simply connected via the power supply
MZN 16 P48 resp.MZN16 P 48-U (seeaccessories)to the inputsof the
amplifier.
Connectionto amplifierswith unbalanced inputs
Inmany cases, for example most home-tape recorders, the input socket
isunbalanced. If a phantom-powered microphone is to be connected to
such inputs itis generally necessary to use a transformer. The secondary
ofthis audio-transformer may then be connected - one side grounded -
tothe input. Proper voltage matching is achieved by selecting a suitable
transformer ratio.
Connectionto amplifierswith high input sensitivity
Ifthe amplifier being used has a very high input sensitivity i.e. when it is
normally intended for use with dynamic microphones, itcan be necessary
to reduce the output voltage from the microphone by means ofa voltage
divider. This should be built into the microphone cable at the amplifier
input. This way the large signal onthe microphone cable is maintained up
tojust before the amplifier, which helps to increase the signal to noise
ratio.
Connectionto amplifierswith powering tacilities
Ifan appropriate voltage sourceis availablein the amplifier the condenser
microphone can be powered directly. The voltage should be 48 volts
::!:12volts. Itshould be stabilisedand filtered,so thatthe unweighted
noise voltage isless than 1 mV.
According to the DIN standard the feed resistors should be 2x appx.
6.8 kQ. The difference between the two resistors should be ~ 0.4%.
The current taken by Sennheiser condenser microphones MKH .. . P48,
isappx. 2mA. This meansthat approx. 7volts arelost ac ross the resistors.
i---rm ~
, L---, ,
: l. ~ :
,
:. ~'
, ,
, ,
c---I '~r
c
x
ro
0
Phantom-powering 48 V
according to DIN 45596
alternatively
48V3,3 kQ
7
Frequeneyresponse
Operatingprlnciple
Dlreet,onaleharaetenstie
Sensitlvltyat1000 Hz
Impedaneeat1000Hz
Signal to noise ratio to DIN 45590
Maximal SPL
Operating voltage
Currenttaken
Temperature range
Output plug
Pinconnections
3pin standard
plugtoDIN41524
1:Audio (+1;
Supply(+)
2:Ground. housing;
SupplyI-)
3:Audio (-I;
Supply1+) aeeording
toDIN 45596
Cableeonneetor 3pm standard eonneetor
toDIN41524
e.g. T 3261001
19mm 0, 235mm lang
160g
dullblaekor satin nickel
40 . 20000Hz
pressure gradlent-line
transdueer
super-eardlold-Iobe
25 mV/Pa :t 1 dB
12.5mV/~bar :t 1dB)
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
3pin XLR plug
1 Ground, housing;
Supply(-I
2:Audio (+);
Supply(+ I
3:Audio I-);
Supply(+ I aeeording
toIEC standard
Publ,eation268-14/2
3pin eonneetorXLR-3-11 C
19mm 0, 250mm lang
175g
Wereservethe righttoalter speeifieation,espeeiallywith regardtoteehnleal
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 isincluded 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 istogether with the swivel mount MZG 415 and the micro-
phone clamp MZO 415 or the shock mount MZS 415 a stable desk stand
forthe MKH 416 P 48. 8
- - i