Shure Brothers Inc SM81-LC Cardioid Condenser Mic

Product Description

The SHURE BROTHERS INC SM81-LC is a cardioid condenser microphone designed for professional audio capture in demanding environments. It features a cardioid polar pattern that focuses pickup on the sound source directly in front of the capsule while rejecting off-axis noise and feedback. Condenser microphones of this type require phantom power and deliver extended frequency response with low self-noise, making them a standard choice for instrument miking, overhead drum applications, and acoustic source recording. Installation and setup are handled by sound engineers and AV integration technicians.

The SM81-LC is suited for professional live sound reinforcement, studio recording, and installed sound applications. Its cardioid pickup pattern and condenser capsule design make it appropriate for use on acoustic instruments, choirs, and broadcast applications where accurate, natural sound reproduction is required. The 10 dB attenuation switch referenced in the product designation allows the microphone to handle higher sound pressure levels without distortion, making it adaptable to loud sources on stage or in the studio.

Key Features

• Cardioid polar pattern reduces pickup of off-axis sound and ambient noise
• Condenser capsule design delivers extended frequency response suitable for acoustic instruments and broadcast
• 10 dB attenuation switch allows operation at elevated sound pressure levels without signal distortion
• Sold individually as a single unit for flexible deployment

Compatibility

Designed for use with standard professional audio systems that supply 48-volt phantom power via XLR connection, consistent with typical mixing consoles, preamps, and audio interfaces used in live and studio environments.

Installation Notes

Installation and connection should be performed by a qualified audio technician or AV integrator familiar with professional microphone signal chains. Ensure phantom power is disabled at the console or preamp before connecting or disconnecting the microphone to avoid transient damage to connected equipment. Route balanced XLR cabling away from AC power lines to minimize interference. Consult the applicable system design documentation and facility electrical codes before integrating into permanent installed sound systems.