Shure 55SH User manual

GENERAL
The Model 55SH Series II provides the Shure classic
UNlDYNEII design coupled with modern acoustic compo-
nents to meet today’s performance standards. This micro-
phone is 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. This allows the Model 55SH Series II to be
used in close proximity to loudspeakers without creating
feedback problems, and it can perform under adverse
acoustic conditions where omnidirectional microphones
cannot.
The 55SH Series II has a low-impedance balanced out-
putdesignedforconnectiontomicrophoneinputsratedat75
to 300 ohms. The microphone features a cartridge shock
mount to reduce stand noise, an On/Off switch, and an at-
tached, self-tensioning, 5/8”–27 thread swivel mount.
This microphone is ideal for public address or theater–
stagesoundsystems,aswellasforbroadcasting,recording,
andothersoundapplicationswhereastand-mountedmicro-
phone with a classic look is desirable.
Features
•
Classic appearance, modern performance
• Frequency response tailored for speech, vocals and in-
strumental music
• Cardioiddirectional patternfor optimumperformance in
adverse acoustic environments
• Shock–mounted cartridge minimizes stand-transmitted
noise, ensures quiet operation
• Rugged die cast case and mechanical design for reli-
ability under rigorous conditions
• Self-tensioningswivelmount,permitstiltingthrough45 _
forward and 80 _ backward
SPECIFICATIONS
Type
Dynamic
Frequency Response
50 to 15,000 Hz (See Figure 1)
20 200001000 1000050 100 98765432 98765432
+10
0
–10
Hz
dB
TYPICAL FREQUENCY RESPONSE
FIGURE 1
Polar Pattern
Cardioid (unidirectional), uniform with frequency, sym-
metrical about axis (see Figure 2)
TYPICAL POLAR PATTERNS
FIGURE 2
Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
Model 55SH Series II User Guide
27A2465 (SB)
E1998, Shure Brothers Incorporated Printed in U.S.A.
This microphone design is a registered trademark of
Shure Brothers Incorporated.

2
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
Polarity
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.) se-
ries, or equivalent
Case
Chrome–plated die casting
Dimensions
See Figure 3
OVERALL DIMENSIONS
FIGURE 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).
POLARITY
To test two microphones and their cables for common
polarity, 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
intoeither microphoneor directlybetween themif theyhave
common polarity. If the sound level drops drastically, or if a
dead spot is found, when talking between the two micro-
phones, either the microphones or their cables have differ-
entpolarity.Allcablesandmicrophonescanbetestedinthis
manner to ensure that they have common polarity.
Toreversethepolarityofalow–impedancemicrophone
cable, use either a Shure A15PRS Switchable Phase Re-
verseror interchangethe wiresconnected topins 2and 3of
theconnector.Toreversethepolarityofamicrophone,inter-
change the cartridge leads (see Figure 4.) This should be
performed by your dealer, the Shure Factory Service De-
partment, or other qualified service personnel.
CARTRIDGE SWITCH XLR CONNECTOR
BLACK
YELLOW
CODED TERMINAL
BLUE
YELLOW
BLACK
1
2
3
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. . . . . . . . . . . . . . . . . . . . . . . . . . . .
For additional service or parts information, please con-
tact Shure’s Service department at 1-800-516-2525 or
www.shure.com. 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
Phone: [phone] FAX: [phone]
In Europe, Phone: [phone] FAX: [phone]
Internationally, Phone: [phone] FAX: [phone]
Website www.shure.com