Shure Microphone SM89 User Manual

Model SM89 User Guide  
FEATURES  
Designed especially for location film and TV prodution,  
theater sound reinforcement, and spot news coverage  
Highly directional polar pattern optimized for distant  
pickup  
Smooth, wide on-axis response  
Greatly suppressed side pickup with minimum comb-filter  
effects  
Two low-cut frequencies, switch selectable  
Low impedance, high sensitivity  
Extremely low hum, noise, and RF pickup  
Uses readily available 11 to 52 Vdc phantom supply  
Rugged and reliable, operates over wide range of tem-  
perature and humidity  
Extremely lightweight, can be suspended on fishpole for  
long periods of time without operator fatigue  
Aircraft-grade materials used throughout  
Supplied with foam windscreen and strong luggage-grade  
carrying case  
MODEL SM89  
CONDENSER SHOTGUN MICROPHONE  
SPECIFICATIONS  
Model SM89 is a highly directional condenser shotgun microphone  
with distant pickup characteristics suitable for on-location film  
and television production. The SM89 can also be used for theater  
sound reinforcement, spot news coverage, or wildlife recording.  
The SM89 discriminates at a distance in favor of desired dialogue  
or effects and against ambient noise–even in noisy surroundings.  
Type  
Pressure gradient/line combination  
Transducer  
Condenser  
Frequency Response  
The on-axis frequency response of the SM89 is very smooth  
and extended. For clarity and speech intelligibility, a slight  
presence rise optimizes the high-frequency response to  
compensate for high-frequency losses. A low-frequency roll-  
off minimizes pickup of wind, mechanical vibration, ambient  
noise, and rumble without affecting voice frequencies.  
60 to 20,000 Hz*  
The off-axis response of the SM89 is virtually free of comb-  
filter effects. This is important when it is not possible  
to aim the microphone precisely or when it is desirable  
to pick up dialogue or sound from moving sources.  
*Curves shown at 1.8m (6 ft)  
TYPICAL ON-AXIS FREQUENCY RESPONSE  
27C2365 (Rev. 4)  
©2006, Shure Incorporated  
Printed in U.S.A.  
 
However, because the 30° off-axis response is smooth, simple  
equalization can compensate for its decreased high frequencies  
if necessary. The curve below shows the SM89 response at 30°  
off-axis, with the equalization that can be used to restore the high-  
frequency response.  
ACCESSORIES  
The supplied windscreen is useful under most indoor-conditions  
where minimal wind noise due to boom motion, air conditioners, or  
heater fans is present. When structure-borne mechanical vibration  
must be cancelled, the optional Model A89SM Shock-Mount can  
be used. And for mounting on a conventional microphone stand,  
use the Shure A57F Swivel Adapter.  
TYPICAL SM89 RESPONSE, 30 ° OFF-AXIS  
Additionally, because of such off-axis characteristics, the SM89  
can be used for pickup at greater angles off-axis than is possible  
with other shotgun microphones. This feature permits deliberately  
locating the desired source up to ±30° off-axis in order to ensure  
that an undesired source is entirely off-axis and will not be picked  
up. Changes in frequency response above 1,000 Hz can then be  
compensated by simple equalization if necessary.  
SM89 WITH WINDSCREEN, CARRYING CASE AND  
SHOCK MOUNT ADAPTER  
IMPORTANT: To avoid degrading the response of the SM89,  
never cover its grille perforations with anything except acoustically  
transparent windscreen material.  
Pickup (and cancellation) is symmetrical about the microphone  
axis; it is unchanged when the microphone is rotated about its own  
axis. In addition to its acoustical and electrical properties, the SM89  
is extremely lightweight. This makes it easier for an operator to hold  
it on a fishpole for extended periods of time, for instance, during  
lengthy takes. The microphone length is optimized in relation to  
its directional characteristics and ease of handling. Its aircraft-  
grade materials withstand rough handling, and its unique internal  
construction provides excellent wind noise rejection while protecting  
against damage to the transducer or electronics.  
CERTIFICATION  
Eligible to bear CE Marking. Conforms to European EMC  
Directive 89/336/EEC. Meets applicable tests and performance  
criteria in European Standard EN55103 (1996) parts 1 and 2, for  
residential (E1) and light industrial (E2) environments.  
FURNISHED ACCESSORIES  
Carrying Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90A4684  
Foam Windscreen . . . . . . . . . . . . . . . . . . . . . . . RK257WS  
The SM89 is supplied with a foam windscreen for use when the  
microphoneissubjecttoquickboommotion, orwhenairconditioning  
or other indoor wind noises may be a problem. A rugged carrying  
case is also supplied. An optional accessory is a specially designed  
shock-mount virtually eliminating mechanical vibration pickup.  
OPTIONAL ACCESSORIES  
Shock Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A89SM  
Swivel Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A57F  
The SM89 is field serviceable. The handle separates by unscrewing  
from the head; the interconnection is gold-plated and extremely  
reliable.  
REPLACEMENT PARTS  
Head Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R144  
Handle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 90A3123  
RFI Filter and Plug Element . . . . . . . . . . . . . . . . . 90A3127  
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.  
3
 
SHURE Incorporated http://www.shure.com  
United States, Canada, Latin America, Caribbean:  
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.  
Phone: 847-600-2000 U.S. Fax: 847-600-1212 Int’l Fax: 847-600-6446  
Europe, Middle East, Africa:  
Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414  
Asia, Pacific:  
Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055  
 

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