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SM39
Headset Condenser Microphone
SM39 headset microphone user manual. Includes setup and cleaning instructions.
Version: 0.2 (2025-A)
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Table of Contents
SM39 Headset Condenser Microphone 3
General Description 3
Setting up the Microphone 3
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Cleaning the Microphone 5
Specifications 6
Certifications 7
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Shure Incorporated
SM39
Headset Condenser Microphone
General Description
The SM39 cardioid headset microphone is ideal for both speech and performance applications. The microphone features an
adjustableheadsetandboomarmandisavailableinTQGandLEMOconnections.Eachmicrophoneissuppliedwithamag
netic windscreen, snap fit windscreen, and cord clip.
Setting up the Microphone
Adjust headband width.
Turn counter-clockwise to loosen and adjust the boom arm. Turn clockwise to tighten.
Apply the magnetic or snap-fit windscreen.
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Bend the boom arm into place and adjust the position.
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Cleaning the Microphone
TheSM39headsetandwindscreencanbecarefullycleanedtomaintainsanitationbetweenuses.Onlyuseapprovedcleans
ingagentstokeeptheSM39operatingproperly.WhencleaningtheSM39,ensurethattheheadsetandwindscreenareentire
ly dry before reassembling them.
Cleaning the Headset
Keep cleaning agents away from the element of the microphone at the end of the boom arm.
The following cleaning agents are safe for the SM39 headset:
•
Mild soapy water, such as liquid dish soap
•
•
•
•
To clean the headset:
®
Clorox disinfecting wipes
Isopropyl Alcohol
Hydrogen Peroxide
®
Lysol disinfectant spray
1.
Remove any external windscreens from the element of the microphone.
2.
Working in sections, apply the cleaning agent to a section of the headset with a clean cloth. Avoid getting any moisture
on the element, and do not apply cleaning agents to the microphone capsule directly.
3.
Dry the headset after cleaning each section to keep liquid away from the element.
4.
Repeat steps 2 and 3 with the other sections of the headset.
Cleaning the Windscreens
Replacing windscreens is the best way to ensure a sanitary windscreen. However, foam windscreens can be cleaned carefully
with the right cleaning agents.
The following cleaning agents are safe for the SM39 windscreens:
•
Warm water
•
Hydrogen peroxide
To clean windscreens:
1.
Remove the windscreen from the headset.
2.
Rinse the removable windscreen with warm water or hydrogen peroxide. Avoid using soap, as the suds will be difficult
to rinse out.
3.
Gently squeeze the windscreen to remove excess liquid.
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4. Allow the windscreen to completely dry before reattaching it to the SM39 headset.
Specifications
Type
Electret Condenser
Frequency Response
70Hzto20,000Hz
Polar Pattern
Unidirectional (Cardioid)
Output Impedance
@ 1 kHz, using RPM400 Preamplifier
95Ω
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Sensitivity
SM39-TQG -47.2 dBV/Pa
SM39-LEMO -40.3 dBV/Pa
Signal-to-Noise Ratio
SM39-TQG 70.9 dB
SM39-LEMO 71.9 dB
Maximum SPL
SM39-TQG 144.2 dB SPL
SM39-LEMO 134.1 dB SPL
Dynamic Range
SM39-TQG 121.1 dB
SM39-LEMO 112 dB
Self Noise
SM39-TQG -118.2 dBV-A
SM39-LEMO -112.2 dBV-A
Equivalent Output Noise
SM39-TQG 23.1 dB SPL-A
SM39-LEMO 22.1 dB SPL-A
Power Requirements
Recommended operating voltage provided at microphone connector on pin 2 relative to pin 1.
+5 V DC
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Polarity
Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1.
Cable
1.5m(59in.)
Connector
TA4F or LEMO
Net Weight
SM39-TQG 55.4 g
SM39-LEMO 54.4 g
Shure Incorporated
Certifications
Note: Testingisbasedontheuseofsuppliedandrecommendedcabletypes.Theuseofotherthanshielded(screened)cabletypesmaydegradeEMCper
formance.
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The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance
Authorized European representative:
Shure Europe GmbH
Global Compliance
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Email: [email protected]
www.shure.com
Shure Incorporated
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