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Shure SM81-LC Instrument Microphone

Part #:
SM81-LC
Model #:
SM81-LC
MSRP: $549.00
$439.00
Availability: Usually arrives in 5-9 business days. Please be aware that global supply shortages outside our control may interfere with our normal delivery times and product availability. For more information, email sales@proacoustics.com or call us at 888-256-4112.
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The Shure SM81-LC is a high-quality, unidirectional condenser microphone with windscreen, no cable. designed for studio recording, broadcasting, and sound reinforcement.

Description

Its wide frequency response, low noise characteristics and low RF susceptibility have made it a standard for applications involving acoustic instruments, especially guitar, piano and cymbals.

The SM81-LC is ruggedly constructed. It operates on phantom power and performs over a wide range of temperatures and humidity conditions. It is furnished with a swivel adapter, attenuator-switch lock, foam windscreen and case for carrying and storage.

Features

  • 20 Hz to 20 kHz frequency response
  • 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, uniform with frequency and symmetric about axis, providing maximum rejection
  • Low RF susceptibility
  • Selectable low-frequency response: flat, 6 or 18 dB/octave rolloff
  • 0 dB/10 dB lockable attenuator switch
  • Phantom powering (DIN 45 596 voltages of 12 to 48 Vdc)
  • Rugged steel construction for durability
  • Field-usable over wide range of temperature and humidity conditions
  • Phantom power required

Specifications

Type Condenser
Frequency Response 20 to 20,000 Hz
Polar Pattern Cardioid
Sensitivity (at 1,000 Hz) Open Circuit Voltage: -45 dBV/Pascal (5.6 mV) (1 Pa = 94 dB SPL)
Impedance Rated at 150 ohms (85 ohms actual)Recommended minimum load impedance: 800 ohms
Output Clipping Level 800 ohm Load: -4 dBV (0.63 V)150 ohm Load: -15 dBV (0.18 V)
Maximum SPL (at 1,000 Hz) 800 ohm load: 136 dB (attenuator at 0) 146 dB (attenuator at -10)
Maximum SPL (at 1,000 Hz) 150 ohm load: 128 dB (attenuator at 0) 138 dB (attenuator at -10)
Self-Noise 16 dB typical, A-weighted19 dB typical, weighted per DIN 45 405
Hum Pickup -3 dB equivalent SPL in a 1 mOe field (60 Hz)
Signal-to-Noise Ratio 78 dB (IEC 651)* at 94 dB SPLS/N ratio is difference between 94 dB SPL
Overvoltage and Reverse Polarity Max. external voltage applied to pins 2 and 3 with respect to pin 1: +52 Vdc
Protection Reverse polarity protection: 200 mA max. (diode-clamped)
Polarity Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3
Power 11 to 52 vdc, 1.2 mA
Case Steel construction with vinyl metallic paint finish and stainless steel screens
Connector Three-pin professional audio connector (male XLR type)
Dimensions 212 mm (7-9/16 in.) L x 23.5 mm (2 in.) W at the widest point
Net Weight 0.507 lbs (230 g)
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