Shure 545L User Manual download pdf

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GENERAL

The Shure Model 545L unidirectional dynamic micro-

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.

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.

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 Excellent reproduction of music and voice

S Shock-mounted cartridge for quiet operation

S Low impedance for unlimited cable length

S Provided with very flexible, small diameter

shielded cable

S Rugged and dependable under all operating

conditions

SPECIFICATIONS

Type

Dynamic

Frequency Response

50 to 15,000 Hz (see Figure 1)

TYPICAL FREQUENCY RESPONSE

Figure 1

Polar Patern

Cardioid (unidirectional)—uniform with frequency, symet-

rical about axis (see Figure 2)

TYPICAL POLAR PATERNS

Figure 2

Model 545L User Guide

Unidirectional Dynamic Microphone

27B2632 (Rev. 7)

2003, Shure Incorporated

Printed in U.S.A.

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Summary of Contents

Page 1 - Printed in U.S.A

– 1 –GENERALThe Shure Model 545L unidirectional dynamic micro-phone is a low-impedance unit designed for instrument orvoice pickup in public address a

Page 2 - GOOSENECK MOUNTING

– 2 –ImpedanceMicrophone rating impedance is 150 Ω (250 Ω actual) forconnection to microphone inputs rated at 75 to 300 ΩPhasingPositive pressure on d