Shure SM94 User Manual

MODEL SM94
UNIDIRECTIONAL
PHONE
The Model SM94 is a unidirectional electret condenser
microphone tailored to the instrument miking needs of pro-
fessional musicians and sound engineers in both live per-
formance and sound recording. Its smooth, flat frequency
response is free of either a "presence peak" or a low-fre-
quency rolloff, making it a perfect choice for all types of mu-
sical instruments. The SM94 is equally at home in sound
reinforcement systems or in sound studios and motion pic-
ture/TV scoring stages. When used with the optional wind-
screen, the SM94 can be used by vocalists and speech-
makers who desire a wide, flat response with minimum
coloration.
The SM94 can be powered by any phantom power
source, or by an internal 1.5-volt AA battery. The battery,
which serves as a backup power source in the event of
phantom power failure, can provide up to 5,000 hours of
continuous operation.
The SM94 is supplied with a swivel adapter for use on a
microphone stand, boom or gooseneck, and a zippered vi-
nyl storage bag. Model SM94-LC is supplied without a
cable.
Accessories include a foam windscreen (A3WS), two-
channel phantom power supply (PS1A), and 7.6 m (25 ft.)
microphone cable (C25J).
Features
Wide, flat response for optimum musical instrument
•
sound reproduction
Full spectrum sound—no presence peak or low-end
•
rolloff
Cardioid polar pattern that is uniform with frequency
•
and symmetrical about axis for maximum rejection of
unwanted sound and minimum of-axis coloration
Very low susceptibility to RF and electromagnetic hum
•
Low distortion output and wide dynamic range for vari-
•
ety of load impedances
Shock–mounted cartridge for reduced handling noise
•
2003, Shure Incorporated
27B2689 (Rev. 4)
CONDENSER MICRO-
Model SM94 User Guide
Accepts 12 to 48 Vdc phantom power
•
Rugged all–metal construction
•
Usable over wide range of environmental conditions
•
Built–in battery power backup
•
Optional foam windscreen
•
SPECIFICATIONS
Type
Cardioid condenser (electret bias)
Frequency Response
40 to 16,000 Hz (see Figure 1)
TYPICAL FREQUENCY RESPONSE
FIGURE 1
Polar Pattern
Cardioid (unidirectional)—uniform with frequency, sym-
metrical about axis (see Figure 2)
TYPICAL POLAR PATTERNS
FIGURE 2
Printed in U.S.A.