Shure 547 User Guide
222
HARTREY
AREA
CODE
312/328-9000
AVE
EVANSTON,
ILL. (60204) U.S.A
CABLE SHUREMlCRO
MODEL
547
UNIDYNE I11
UNIDIRECTIONAL DYNAMIC MICROPHONE
WITH BUILT-IN VIBRATION-ISOLATION SHOCK MOUNT
The Model 547 Unidyne
built to provide wide range reproduction of music and voice.
The microphone is ideal for use by professional entertainers in high quality
theatre-stage sound systems, recording, cathedrals and churches, and other critical
public address systems such as those used in political conventions and legislatures,
hotels, stadiums, and public auditoriums.
The Model 547 features an exceptionally uniform and effective unidirectional
pickup pattern-provides an easy solution to feedback problems in reverberant locations, permits best utilization of space in small studios, facilitates orchestral placement, and provides practically complete exclusion of unwanted noises.
The built-in vibration-isolation shock mount prevents the pickup of mechanical
vibrations.
The microphone features
Unusually effective cardioid pickup pattern.
Cartridge and microphone body separately shock mounted for quiet operation.
Convenient impedance selection.
An accessory switch adapter furnished to serve in applications where an
OFF
switch is necessary at the microphone.
Positive action detent switch.
Dependability under all operating conditions.
The Model 547 is dual impedance for connection into 30-50 ohm or 150-250
ohm line.
I11
Microphone is a unidirectional dynamic microphone
:
ON-
The microphone is recommended where long cable lengths are required or under
conditions of severe hum disturbance. The permissible cable length is practically
unlimited, since neither response nor level is appreciably affected. For use with high
impedance amplifiers, Shure Model
for coupling the low impedance line to the amplifier input. The Shure Model
transformer permits coupling a low impedance line to the high impedance input.
A95A Line Matching Transformer is available
A95A
Case
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A49C
OPTIONAL ACCESSORIES
FURNISHED ACCESSORIES
Line Matching Transformer A95A
Vibration-Isolation Stand
Desk Stand
Quick Disconnect Isolation Unit A45
Windscreen Assembly
Each microphone is guaranteed to be free from electrical and mechanical defects
for a period of one year from date of shipment from factory, provided all instructions
are complied with fully. In case of damage, return the microphone to the factory
for repairs. Our guarantee is voided if the microphone is subjected to accident or
abuse.
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GUARANTEE
MODEL
:
547
S39A
S33B
A2WS
ARCHITECT'S SPECIFICATIONS
The microphone shall be Shure Model 547 or equivalent. A moving coil (dynamic) microphone with a frequency range of 40 to 15,000
cardioid polar characteristic. The cancellation at the sides shall be approximately 6db
and the cancellation at the rear shall be 15 to 20 db. The microphone shall be
equipped with a three-position impedance "Off" switch for adjusting the microphone
rating impedance for 50 ohms-150 ohms. (EIA Rating Impedance: 38 ohms-150
ohms.)
The microphone output shall be:
50 ohms impedance -56 db
(0 db = 1 milliwatt with 10 microbars)
250 ohms impedance -56 db
(0 db = 1 milliwatt with 10 microbars)
The microphone rating Gm (sensitivity) at 1,000
the following levels.
Low Impedance
Medium Impedance
EIA Standard SE-105 August 1949
The microphone shall be provided with a swivel adjustable through
microphone shall be equipped with a vibration-isolation unit in combination with the
stand connector. The microphone will mount on a stand having
The overall dimensions shall be
width, and
6%" (155.5 mm) in depth.
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429$2" (124.7 mm) in height, 1%" (34.9 mm) in
Hz.,
Hz.
shall be within
this unit shall have a
-+
3
db of
-149 db
-148 db
180.' The
5/8"-27 thread.
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