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Shure 545SD-LC Cardioid Dynamic, High or Low Z, On-Off Switch
Overview
Shure 545SD-LC Cardioid Dynamic, High or Low Z, On-Off Switch
Classic Unidyne instrument mic features selectable dual-impedance operation with a silent on/off switch.
Description
The predecessor to the SM57, the 545SD Classic Unidyne® Instrument Microphone is a dual-impedance, unidirectional, dynamic microphone.

Shipped connected for low-impedance operation, the 545SD features a silent magnetic reed on/off switch with lock-on option. A favorite for instrument pickup and recording, the 545SD can also be used on lecterns in public address systems.
Features
  • Exceptionally uniform cardioid pattern minimizes feedback
  • Selectable dual-impedance operation
  • Silent magnetic reed on/off switch with lock option

Shure 545SD-LC Cardioid Dynamic, High or Low Z, On-Off Switch

$149.00Price
  • Type Dynamic
    Frequency Response 50 to 15,000 Hz
    Polar Pattern Cardioid (unidirectional)--uniform with frequency, symmetrical about axis
    lmpedance 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 LOW @ 1,000 Hz: Open Circuit Voltage* -58.0 dB (1.3 mV); HIGH @ 1,000 Hz: Open Circuit Voltage* -35.0 dB (17.6 mV) *0 dB = 1 volt per Pascal (1 Pa = 94 dB SPL)
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