The Shure SM81 is a studio-standard cardioid condenser for acoustic instruments, the pencil mic on countless acoustic guitar, piano, hi-hat and overhead recordings since 1978. Flat 20Hz-20kHz response, a 10dB pad with lock, and a three-position low-frequency switch, in a steel body that tours as well as it records. LC: supplied without cable.
Features
Cardioid condenser, flat 20Hz-20kHz response
10dB lockable pad, 136dB max SPL unpadded
Three-position low-frequency switch (flat / 18dB per octave cutoff / 6dB per octave rolloff)
78dB signal-to-noise ratio
Steel construction, stainless screens
Clip, attenuator lock, windscreen and bag included
Specifications
| Type | Condenser instrument microphone |
| SKU | SM81-LC |
| Polar pattern | Cardioid |
| Frequency response | 20Hz-20kHz |
| Sensitivity | -45 dBV/Pa (5.6mV) |
| Max SPL | 136dB (pad off) |
| Signal-to-noise | 78dB (94dB SPL ref) |
| Phantom power | 11-52V DC, 1.2mA |
| Dimensions | 212mm x 23.5mm |
| Weight | 230g |







