Shure 55SH Series II microphone User guide

Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
Model 55SH Series II User Guide
Features
• Classic appearance, yet modern performance
• Frequency response effective for speech or vocal
and instrumental music
• Cardioid directional pattern especially suited for
optimum performance in adverse acoustic environments
• Shock–mounted cartridge minimizes standtransmitted noise, ensures quiet operation
• Rugged die cast case and mechanical design for
reliability under rigorous conditions
• Self–tensioning swivel mount, permits tilting
through 45 forward and 80 backward
SPECIFICATIONS
Type
Dynamic
GENERAL
The Model 55SH Series II provides the Shure classic UNlDYNE II design coupled with entirely new
acoustic components to meet today’s performance
standards. This microphone is particularly excellent for
vocal pickup with its characteristic Shure presence
peak.
The 55SH Series II has a cardioid (unidirectional)
polar pickup pattern that minimizes sound pickup from
the rear of the microphone. Because of this characteristic, the Model 55SH Series II can be used closer than
usual to loudspeakers without creating feedback problems and will provide very satisfactory operation under
adverse acoustic conditions where an omnidirectional
microphone may not function properly.
TYPICAL FREQUENCY RESPONSE
FIGURE 1
Polar Pattern
Cardioid (unidirectional), uniform with frequency,
symmetrical about axis (see Figure 2)
The 55SH Series II has a low–impedance balanced output designed for connection to microphone
inputs rated at 75 to 300 ohms. An effective new cartridge shock mount reduces stand noise; and an On/
Off switch is supplied on the attached self–tensioning
swivel that mounts on a stand with a 5/8”–27 thread.
This microphone is ideal for excellent quality public
address or theater–stage sound systems, as well as
for broadcasting, recording, and other sound applications where a stand–mounted microphone with a classic look is desirable.
1996, Shure Brothers Inc.
27A2465 (PD)
TYPICAL POLAR PATTERNS
FIGURE 2
Printed in U.S.A.
Impedance
Microphone rating impedance is 150 ohms (270
ohm actual) for connection to microphone inputs
rated at 75 to 300 ohms
Output Level (at 1,000 Hz)
Open Circuit Voltage . . . . . . . –78.0 dB (0.13 mV)
0 dB = 1 volt per microbar
Power Level . . . . . . . . . . . . . . . . . . . . . . . . . –58.5 dB
0 dB = 1 milliwatt per 10 microbar
Phasing
Positive pressure on the diaphragm produces
positive voltage on pin 2 relative to pin 3 of the
output connector
Switch
Built–in On/Off switch, integral part of swivel
mount connector Three pin professional type,
designed to mate with Cannon XL series, Switchcraft A3 (Q.G.) series, or equivalent
Case
PHASING
To test two microphones and/or their cables for
proper phasing, connect them to an amplifier and talk
or sing into them while holding them three or four inches apart. The sound from the speakers should be the
same when talking into either microphone or directly
between them if they are in phase with each other. If
the sound drops drastically, or if a dead spot is found
when talking between the two microphones, either the
microphones or their cables are out of phase. All
cables and microphones should be tested in this manner to ensure that they are in phase with each other.
To change the phase of a low–impedance microphone cable, either use a Shure A15PRS Switchable
Phase Reverser or interchange the wires connected to
pins 2 and 3 of the connector. To change the phase of
a microphone, the microphone cartridge leads must be
interchanged (see Figure 4.) This should be performed
by your dealer, the Shure Factory Service Department,
or other qualified service personnel.
CARTRIDGE
XLR CONNECTOR
SWITCH
Chrome–plated die casting
BLACK
Dimensions
YELLOW
See Figure 3
BLACK
1
2
YELLOW
3
CODED TERMINAL
BLUE
OVERALL DIMENSIONS
INTERNAL CONNECTIONS
FIGURE 4
OPTIONAL ACCESSORIES
Desk Stand . . . . . . . . . . . . . . . . . . . . . . . . . . S37A, S39A
Line Matching Transformer . . . . . . . . . . A85F, A95UF
Cable and Plug Assembly . . . . . . . C25B, C25E, C25J
REPLACEMENT PARTS
Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R115
On/Off Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . RK32S
Plug Element . . . . . . . . . . . . . . . . . . . . . . . . . . RK169P
FLGURE 3
Net Weight
625 grams (22 oz)
Certifications
Conforms to European Union directives, eligible
to bear CE marking; meets European Union
EMC Immunity Requirements (EN 50 082–1,
1992); RF radiated (IEC 801–3); ESD (IEC
801–2); EFT (IEC 801–4).
For additional service or parts information, please
contact
Shure’s
Service
department
at
1-800-516-2525. Outside the United States, please
contact your authorized Shure Service Center.
The Sound of Professionals...Worldwide
Shure Brothers Incorporated
222 Hartrey Avenue, Evanston IL 60202-3696