Shure Microphone 545L User Manual

Model 545L User Guide  
Unidirectional Dynamic Microphone  
GENERAL  
SPECIFICATIONS  
The Shure Model 545L unidirectional dynamic micro- Type  
phone is a low-impedance unit designed for instrument or  
voice pickup in public address applications. With its attached  
cable, the microphone is suitable for mounting on an optional  
A25B swivel adapter, on a fixed pipe or flexible gooseneck, or  
for handheld use.  
Dynamic  
Frequency Response  
50 to 15,000 Hz (see Figure 1)  
The 545L is ideal for use in critical public address sys-  
tems such as those used in political conventions and legisla-  
tures, hotels, public auditoriums, stadiums, and churches.  
The microphone has an exceptionally uniform pickup pattern  
that provides an excellent solution to feedback problems in  
reverberant locations, permits best utilization of space in  
small studios, facilitates orchestral placement, and provides  
effective rejection of unwanted noises.  
TYPICAL FREQUENCY RESPONSE  
Figure 1  
Polar Patern  
Cardioid (unidirectional)—uniform with frequency, symet-  
rical about axis (see Figure 2)  
Features  
S
Effective cardioid pickup pattern, uniform to low fre-  
quencies, minimizes reverberation and feedback,  
discriminates against pickup of nearby performers  
and extraneous noise  
S
S
S
S
Excellent reproduction of music and voice  
Shock-mounted cartridge for quiet operation  
Low impedance for unlimited cable length  
Provided with very flexible, small diameter  
shielded cable  
S
Rugged and dependable under all operating  
conditions  
TYPICAL POLAR PATERNS  
Figure 2  
2003, Shure Incorporated  
27B2632 (Rev. 7)  
Printed in U.S.A.  
 

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