Shure SM81-LC Cardioid Condenser Mic

Used Cat #2950607 • MFR #SM81-LC
Shure
Key Features
  • For Live Sound, Broadcast & Recording
  • Excellent Off-Axis Rejection
  • Flat Response between 20 Hz to 20 kHz
  • Multiple Roll-Off Filters on Low End
The Shure SM81-LC is a cardioid condenser microphone used in live sound, broadcast, and recording scenarios. It features a flat-frequency response between 20 Hz and 20 kHz and provides a switchable low-pass filter that can be set to either 6 dB/octave or 18 dB/octave. Other features, such as a lockable -10 dB pad and SPL handling of 146 dB (with the pad on), make the microphone well suited for a variety of situations.
Used
Condition: 9 Minor surface marks
Very good condition; overall looks clean but may have minor signs of use/surface marks
Note: w/case
In Stock
$302.95
New: $399.00
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Shure SM81-LC Overview

The Shure SM81-LC is a cardioid condenser microphone used in live sound, broadcast, and recording scenarios. It features a flat-frequency response between 20 Hz and 20 kHz and provides a switchable low-pass filter that can be set to either 6 dB/octave or 18 dB/octave. Other features, such as a lockable -10 dB pad and SPL handling of 146 dB (with the pad on), make the microphone well suited for a variety of situations.

This mic sports a cardioid polar pattern that helps it achieve a high level of gain before inducing feedback, ensuring the mic will work well on the stage. This polar pattern also sports excellent off-axis rejection, helping to retain isolation in live and studio recordings.

The SM81-LC offers the kind of durability one would expect from Shure as well as low susceptibility to RF issues in the field. Its steel construction ensures the mic can be used in a variety of conditions, though phantom power is required to operate the SM81-LC.

Key Features at a Glance
  • Uniform cardioid pick-up pattern provides lots of gain before feedback on stage, as well as rejection of off-axis sound
  • Flat-frequency response from 20 Hz to 20 kHz for accurate reproduction of sound sources  
  • Selectable low-frequency response (flat, 6 dB/octave, or 18 dB/octave roll-off)
  • Vinyl-coated steel construction and stainless steel screen resist wear and abuse
  • High sound pressure level (SPL) handling
  • Low susceptibility to RFI
  • Lockable -10 dB attenuator switch
  • Performs over a wide range of temperature and humidity conditions
  • Phantom powered
  • Rugged and reliable
UPC: 042406051194

Shure SM81-LC Specs

Key Specs
Form Factor
Stand/Boom Mount
Element Type
Electret Condenser
Polar Pattern
Cardioid
On-Board Controls
High-Pass Filter, Pad
Frequency Range
20 Hz to 20 kHz
Maximum SPL
136 dB SPL
146 dB SPL (with Pad)
Analog Output
1x XLR 3-Pin
Power Sources
Phantom Power
Primary Applications
Live Sound, Studio Recording, Broadcast
Frequency Response
20 Hz to 20 kHz
Form Factor
Stand/Boom Mount
Signal-to-Noise Ratio
78 dB (at 94 dB SPL)
Maximum Input Sound Level
136 dB (@ 250 Hz 0.5% THD)
146 dB (with Pad)
Power Requirements
11 to 52 VDC Phantom Power
Output Impedance
150 Ohms (85 Ohms Actual)
Intended Sound Sources
Acoustic Guitar, Electric Guitar, Piano, Drums
Output Connectors
XLR-3M Type
Sound Field
Mono
Pad
-10 dB Attenuation
Element Type
Electret Condenser
Low Frequency Roll-Off
-6 dB/Octave at 100 Hz
-18 dB/Octave at 80 Hz
Sensitivity
-45 dBV/Pa, 5.6 mV (at 1 kHz)
Self Noise
16 dBA Typical
19 dB Typical (Weighted per DIN 45 405)
Polar Pattern
Cardioid
Maximum SPL
136 dB (1 kHz at 1% THD, 1 kOhm Load), 146 (-10 dB Pad On)
Clipping Level
-4 dBv, 0.63 V (1 kHz at 0.25 THD, 1 kOhm Load)
Orientation
End Address
Hum & Noise
-3 dB, Typical at 60 Hz, Equivalent SPL/mOe
Circuitry
Solid-State
Pad
-10 dB
Housing
Steel Construction with Vinyl Metallic Print Finish and Stainless Steel Screens
Applications
Sound Reinforcement, Broadcast, and Studio Recording
High-Pass Filter
80 Hz, 18 dB/Octave
100 Hz, 6 dB/Octave
Operating Temperature
20 to 120°F / -6.7 to 49°C
Storage Temperature
-20 to 165°F / -29 to 74°C
Gain Adjustment
No
Relative Humidity
0 to 95%
On-Board Controls
High-Pass Filter, Pad
Dimensions
Mic Body Diameter x Length:

0.79 x 8.4" / 20 x 212 mm
Capsule Diameter: 0.9" / 23.5 mm

Weight
0.5 lb / 0.2 kg
Performance
Frequency Range
20 Hz to 20 kHz
Maximum SPL
136 dB SPL
146 dB SPL (with Pad)
Impedance
85 Ohms
Sensitivity
-45 dBV/Pa at 1 kHz
5.6 mV/Pa at 1 kHz
Signal-to-Noise Ratio
78 dB (at 1 Pa/94 dB SPL)
Equivalent Noise Level
16 dB A-Weighted
Connectivity
Analog Output
1x XLR 3-Pin
Power
Power Sources
Phantom Power
Operating Voltage
11 to 52 V (Phantom Power)
Physical
Color
Silver
Mounting Thread Size
5/8"-27 Female
Construction Material
Stainless Steel, Steel, Vinyl
Dimensions
ø: 0.79 x L: 8.4" / ø: 20 x L: 212 mm (Microphone)
ø: 0.9" / ø: 23.5 mm (Capsule)
Weight
0.5 lb / 0.2 kg

Shure SM81-LC Reviews

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