The Shure SM81’s uniform cardioid pickup pattern achieves maximum gain before feedback onstage, while offering excellent off-axis rejection in a myriad of applications. Besides being an industry-standard microphone for acoustic guitar, this small-diaphragm condenser’s ruler-flat frequency response offers natural-sounding reproduction of other acoustic instruments, such as mandolin, violin, and banjo. It also performs admirably as drum overheads. What’s more, it exhibits impressive SPL handling, enabling it to effortlessly tackle loud sources. A 3-position highpass filter switch and lockable -10dB pad round out the SM81’s robust features. Boasting durable vinyl-coated steel construction, the SM81 includes a swivel adapter, foam windscreen, and carrying case.

Features

• Small-diaphragm condenser microphone with ruler-flat frequency response
• Industry-standard acoustic guitar mic — just point it at the 12th fret for instant album-ready sound
• Also excels on other acoustic instruments and as drum overheads
• Uniform cardioid pickup pattern offers exceptional isolation with minimum off-axis coloration
• Ultra-smooth response curve ensures accurate sonic reproduction
• Exhibits low noise and high output, plus a negligible level of distortion over a wide range of load impedances
• Low RF susceptibility mitigates radio interference
• 3-position low-frequency response switch (flat, 6dB, or 18dB/octave roll-off) minimizes noise and proximity effect
• Lockable -10dB pad for capturing extra-loud sources without altering your frequency response
• Durable vinyl-coated steel construction
• Field-usable in an infinite range of temperature and humidity conditions
• Includes a swivel adapter, foam windscreen, and carrying case

Specifications

• Microphone Type:                              Condenser
• Polar Pattern:                                         Cardioid
• Frequency Response:                    20Hz-20kHz
• Max SPL:                                                    136dB (146dB w/Pad)
• Output Impedance:                          150 ohms
• Signal to Noise Ratio:                    78dB
• Self Noise:                                                16dB (A weighted)
• Low Cut Filter:                                        80Hz (-18dB/octave), 100Hz (-6dB/octave)
• Pads:-                                                              10dB
• Connector:                                                  XLR
• Power Source:                                        12-52V phantom power
• Dimensions:                                              8.35" x 0.93"
• Weight:                                                           0.5 lbs.
• Manufacturer Part Number:    SM81-LC