Cut through the Noise - The Shure SM81-LC Cardioid Condenser Instrument Microphone

The Shure SM81 is a high-quality, unidirectional condenser microphone designed for studio recording, broadcasting, and sound reinforcement. 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 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. Cable sold separately.

• 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 and minimum coloration of off-axis sounds
• 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

SPECIFICATIONS

• Weight: 0.507 lbs / 230 g
• Height: 8.346 inches / 212 mm
• Width: 0.925 inches / 23.5 mm
• Depth: 0.925 inches / 23.5 mm
• Transducer Type: Condenser
• Polar Pattern: Cardioid
• Frequency Range: 20 Hz - 20 kHz
• Sensitivity: -45.00 dBV/Pa
• Sensitivity: 5.60 mvpa
• Equivalent Selfnoise: 16 dB(A)
• Maximum Sound Pressure
• 800 ohm load: 136 dB (attenuator at 0) 146 dB (attenuator at -10)
• 150 ohm load: 128 dB (attenuator at 0) 138 dB (attenuator at -10)
• Impedance: 85 Ω
• Switchable Low Cut: Yes
• Output Connectors: 3 Pin XLR
• Attenuation PAD: Yes
• Interchangeable Capsule: No
• Requires Phantom Power: 11 to 52 VDC

Manufacturer: Shure
Model: SM81-LC
SKU: I062990-N-8-WHXD
UPC: 042406051194

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.