SHURE SM81-LC Cardioid Instrument Microphone

SHURE SM81 LC Cardioid Instrument Condenser Microphone 

SHURE SM81 LC เป็นไมโครโฟนชนิด Electret Bias Condenser มีทิศทางการรับเสียงแบบ Cardioid ตอบสนองความถี่ที่ 20Hz – 20KHz, Flat response curve for accurate reproduction of sound sources, Selectable low-frequency response: flat, 6 or 18dB/oct roll-off

The Shure SM81 is a high-quality small diaphragm, cardioid condenser microphone. Its flat, neutral frequency response, make it particularly well-suited for use on acoustic guitar, piano, cymbals and choirs.


  • Flat response curve for accurate reproduction of sound sources
  • Low noise and high-output clipping level
  • Low distortion over a wide range of load impedances
  • Cardioid polar pattern effectively isolates source signal
  • Low RF susceptibility
  • Selectable low-frequency response: flat, 6 or 18dB/oct roll-off
  • 0dB/10dB lockable attenuator switch
  • Phantom powering (DIN 45 596 voltages of 12 to 48 Vdc)
  • Rugged steel construction for durability
  • Field-useable over wide range of temperature and humidity conditions


Transducer(Electret Bias) Condenser
Polar PatternCardioid
Frequency Response20 Hz – 20 kHz
Dynamic Range (Typical)120 dB
Signal-to-Noise Ratio78 dB, (@ 94 dB SPL, IEC 651)
Maximum Input Sound Level136 dB, (@ 250 Hz 0.5% THD)146 dB, (with Pad)
Power RequirementsPhantom 11 – 52v DC
Output Impedance150 Ohms (85 Ohms Actual)
Output ConnectorsXLR-3M Type
Pad-10 dB Attenuation
Low Frequency Roll-Off-6 dB/Octave @ 100 Hz-18 dB/Octave @ 80 Hz
ApplicationsSound Reinforcement, Broadcast and Studio Recording.
Dimensions212 x 23.5 mm LxDiameter
Weight8 oz. (230 g)