Shure SM81 Cardioid Condenser Microphone

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Description
The SM81 is a precision cardioid condenser microphone designed for studio recording and live sound reinforcement of acoustic instruments. Its flat, neutral frequency response and low self-noise make it an industry standard for acoustic guitar, piano, cymbals, and orchestral ensembles. A 10 dB attenuator and three-position low-cut filter provide versatile gain staging in demanding environments.
Performance
- Flat, neutral response: Accurate reproduction across the full frequency range without coloration
- 10 dB attenuator: Allows placement close to loud sources such as drum overheads without distortion
- 3-position low-cut filter: Flat, 6 dB/octave at 100 Hz, or 18 dB/octave at 80 Hz for reducing rumble and proximity effect
- Low self-noise: Captures subtle detail in quiet acoustic recordings
- Cardioid pattern: Consistent pickup across the frequency range with excellent off-axis rejection
Specifications
- Type: Condenser
- Polar pattern: Cardioid
- Frequency response: 20 Hz to 20,000 Hz
- Sensitivity: -36.0 dBV/Pa (15.8 mV)
- Output impedance: 150 ohms
- Maximum SPL: 136 dB (146 dB with attenuator)
- Self-noise: 16 dB SPL-A
- Connector: 3-pin XLR
- Power: 48V phantom power required
- Dimensions: 216 x 20 mm (8.50 x 0.79 in)
- Weight: 257 g (9.1 oz)
In the Box
- Shure SM81 condenser microphone
- A57F adapter
- Foam windscreen
- Zippered carrying case














