Shure Brothers Incorporated 222 Hartrey Avenue Evanston IL 60202-3696 U.S.A.
Models 545D and 545SD User Guide
MODEL 545D
MODEL 545SD
GENERAL
The UNIDYNE® Ill Models 545D and 545SD are dualimpedance unidirectional, dynamic microphones shipped connected for low-impedance operation. The microphones provide wide range reproduction of music and voice and can be effectively used outdoors and indoors. The UNIDYNE Ill is ideal for use by professional entertainers in high quality theater-stage sound systems and recording, as well as in critical public address systems such as those used in political conventions and legislatures, convention halls, hotels, public auditoriums, stadiums, cathedrals, and churches. The UNIDYNE III features an exceptionally uniform pickup pattern-provides an effective solution to feedback problems in reverberant locations, permits best utilization of space in small studios, facilitates orchestral placement, and provides practically complete exclusion of unwanted noises. Model 545D is designed for applications where a switch is not required. Model 545SD is equipped with a magnetic reed On-Off switch
Features
Unusually effective cardioid pickup pattern reduces feedback (annoying loudspeaker �squeals�) and prevents echoing (boominess) that sometimes occurs in partially filled halls. Can also be used closer to loudspeakers than usual without creating feedback problems Excellent reproduction of voice and music Shock mounted cartridge for quiet operation Quick, neat, solderless impedance selection Built-in, long-life, magnetic reed ON/OFF switch (545SD) Rugged professional three-pin audio connector on the microphone
Strong, for effecshielding from hum pickup (545SD-CN) tive
detachable cable especially selected
VARIATIONS
Model 545SD-CN: Supplied with cable (See Specifications for details on cable.) Models 545D-LC and 545SD-LC: Supplied without cable.
Versatility-for use in the hand or on a stand-indoors or outdoors Available in three versions: without switch or cable (545D-LC), with switch and cable (545SD-CN), and with switch but without cab/e (545SD-LC)
