Available Options

545SD-LC Cable not included

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.

Application
Microphone Type

Dynamic:

Simple, rugged diaphragm/coil. handles extreme volume levels without distortion.

Polar Pattern

Cardioid:

Picks up the most sound in front of the microphone and some from the sides. Less susceptible to feedback in high volume environments.

Frequency Response

Tailored:

Smooth, extended response. Tuned to accentuate specific types of instruments or voices.

Form Factor

Handheld

Model Line

Classic

Downloads
Classic Microphones Product Brochure (PDF)
545SD User Guide (PDF)
Features
  • Exceptionally uniform cardioid pattern minimizes feedback
  • Selectable dual-impedance operation
  • Silent magnetic reed on/off switch with lock option
Specifications
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)
Accessories
Name Availability
A25D

A25D

Break resistant microphone clip that securely mounts the SM58, SM57, SM87A, Beta 87A, Beta 87C and all other microphones with 3/4-inch and larger handles to a standard microphone stand.

A55HM

A55HM

Shock Stopper Isolation Mount/Swivel Adapter, Half Mount, for SM57, SM58, Beta 57A, Beta 58A, Beta 87A, Beta 87C or any Shure tapered handle mic.

A55M

A55M

Isolation mount and swivel adapter securely attaches Shure models SM57, SM58, SM86, Beta57A, Beta58A, Beta87A, and Beta87C to standard microphone stands.

A26M

A26M

Allows two Shure SM57, Beta 57A, or 545 Series microphones to be placed vertically on a standard microphone stand.

A25DM

A25DM

10 pack of A25D microphone clips

R45

R45

Direct replacement cartridge for Shure 545 Series and the PE54 series microphones.

S37A

S37A

Desk stand, gray finish, for use with various Shure swivel adapters and shock mounts.

A2WS

A2WS

Locking Microphone Windscreen reduces unwanted breath and wind noise. For use with Shure SM57 and 545 Series microphones. Available in black and gray.