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Shure UNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone

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The UNIDYNE III Model 545SD is a dual-impedance, unidirectional, dynamic microphone. Shipped connected for low-impedance operation, the mic features ...Click To Read More About This Product

Available 10-10-2017

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OVERVIEW

A favorite for instrument pickup and recording.

The UNIDYNE III Model 545SD is a dual-impedance, unidirectional, dynamic microphone. Shipped connected for low-impedance operation, the mic features a silent magnetic reed on/off switch. The UNIDYNE III is a favorite for instrument pickup and recording, and can be used on lecterns for public address systems such as those used in political conventions and legislatures, convention halls, hotels, public auditoriums, stadiums, schools, and churches. (545SD-LC Cable not included).

FEATURES
Exceptionally uniform cardioid pattern minimizes feedback in PA applications
Selectable dual-impedance operation
Silent magnetic reed on/off switch with lock option
Cardioid dynamic
Frequency response 50 to 15,000 Hz

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SPECIFICATIONS
Type: Dynamic
Frequency Response: 50 to 15,000 Hz
Polar Pattern: Cardioid (unidirectional)--uniform with frequency, symmetrical about axis
Impedance: Dual. Microphone rating impedance is 150 ohms (250 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms and "High" for connection to high-impedance microphone inputs. Wired for low impedance as supplied.
Output Level (at 1,000 Hz): Open Circuit Voltage*: Low: -58.0 dB (1.3 mV); High: -35.0 dB (17.6 mV)*0 dB = 1 volt per Pascal (1 Pa = 94 dB SPL)
Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 (with respect to pin 3).
Switch: Built-in magnetic reed on/off switch with lockplate.
Cartridge Shock Mount: Internal rubber vibration-isolator
Swivel Adapter: Positive action, adjustable through 90 degrees from vertical to horizontal, permits easy removal for handheld use, suitable for mounting on stand with 5/8"- 27 thread
Case: Chrome-plated die casting with ARMO-DUR grille and stainless steel screen
Dimensions (Length x Diameter): 6-3/16" x 1-1/4" (157 x 32 mm)
Net Weight (less cable): 9 oz (255 grams)
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by PowerReviews
ShureUNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone
 
5.0

(based on 1 review)

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Reviewed by 1 customer

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5.0

The best harp you can buy new

By 

from rockland, ma

Site Member

Comments about Shure UNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone:

This is simply the best harmonica microphone you can buy thats new. Its the same mic Paul Butterfield used and Shure still makes it. Their new green bullet is junk compared to this and put it in the PA and its proablly the best vocal mike the Shure makes too.

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