Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
Models 545D and 545SD User Guide
MODEL 545DMODEL 545SD
GENERALFeatures
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The UNIDYNE Ill Models 545D and 545SD are dual-
Unusually effective cardioid pickup pattern reduces
impedance unidirectional, dynamic microphones shippedfeedback (annoying loudspeaker ?squeals?) and pre-
connected for low-impedance operation. The microphones
vents echoing (boominess) that sometimes occurs in
provide wide range reproduction of music and voice and can
partially filled halls. Can also be used closer to loud-
be effectively used outdoors and indoors.speakers than usual without creating feedback prob-
The UNIDYNE Ill is ideal for use by professional enter-lems
tainers in high quality theater-stage sound systems and re-
cording, as well as in critical public address systems such asExcellent reproduction of voice and music
those used in political conventions and legislatures, conven-
Shock mounted cartridge for quiet operation
tion halls, hotels, public auditoriums, stadiums, cathedrals,
and churches.Quick, neat, solderless impedance selection
The UNIDYNE III features an exceptionally uniform
Built-in, long-life, magnetic reed ON/OFF switch
pickup pattern-provides an effective solution to feedback
(545SD)
problems in reverberant locations, permits best utilization of
space in small studios, facilitates orchestral placement, andRugged professional three-pin audio connector on the
provides practically complete exclusion of unwanted noises.microphone
Model 545D is designed for applications where a switch
Strong, detachable cable especially selected for effec-
is not required. Model 545SD is equipped with a magnetic
tive shielding from hum pickup (545SD-CN)
reed On-Off switch
VARIATIONSVersatility-for use in the hand or on a stand-indoors
or outdoors
Model 545SD-CN: Supplied with cable (See Specifi-
cations for details on cable.)Available in three versions: without switch or cable
Models 545D-LC and 545SD-LC: Supplied without(545D-LC), with switch and cable (545SD-CN), and
cable.with switch but without cab/e (545SD-LC)
? 1998, Shure Brothers Incorporated
27A2237 (RA)Printed in U.S.A. |