The Shure SM81-LC is a classic, no-nonsense small-diaphragm condenser microphone that belongs in every studio locker. If you need a transparent, ruler-flat microphone that captures acoustic guitars, drum cymbals, and pianos with total fidelity and zero artificial hype, the SM81 is a time-tested reference standard.

The Shure SM81-LC is a industry-standard, small-diaphragm electret condenser microphone engineered specifically for critical studio recording, broadcast, and high-end live sound reinforcement. Renowned for its exceptionally flat, extended frequency response and precise polar consistency, the SM81 is a reference choice for acoustic instruments—including acoustic guitar, piano, brass, woodwinds, and drum overheads or cymbals—where uncolored, natural sound reproduction is paramount.

Built with a high-grade transducer and advanced transformerless output stage, the SM81 delivers precise transient response, low distortion, and exceptional RF immunity. It features a 3-position low-frequency response switch (flat,$6\text{ dB/octave}$ roll-off, or $18\text{ dB/octave}$ cut) to mitigate proximity effect and low-frequency rumble, alongside a lockable $10\text{ dB}$ attenuation pad for handling high sound pressure levels. Housed in a heavy-duty steel structure, the SM81 operates reliably over a wide range of temperature and humidity conditions.

Key Features

• Exceptionally Flat Frequency Response: Delivers precise, uncolored reproduction of acoustic instruments, percussion, and classical ensembles across a broad $20\text{ Hz to } 20,000\text{ Hz}$ range.

• Precise Cardioid Polar Pattern: Uniform directional pickup maximizes gain before feedback while providing excellent off-axis rejection of ambient room noise.

• 3-Position Low-Frequency Response Switch: Selectable low-end control (flat,$6\text{ dB/octave}$ slope, or $18\text{ dB/octave}$ cut) eliminates mechanical rumble, wind noise, and excessive proximity effect.

• Lockable 10 dB Attenuation Pad: Built-in attenuator switch increases maximum SPL handling capability to $146\text{ dB SPL}$ for high-volume sources like drum overheads and brass.

• Rugged Steel Construction: Vinyl-coated steel casing and robust internal shock isolation ensure reliable performance across demanding touring and studio environments.

• Phantom Powered Flexibility: Operates on standard $11\text{V to } 52\text{V DC}$ phantom power (DIN 45596) with low internal noise floor ($16\text{ dB-A}$).