Shure SM91

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Product description

The SM91 Microphone is designed specifically for surface-mounted applications. It is a professional quality permanently-biased condenser microphone with a half-cardioid directional pattern (cardioid in the hemisphere above the mounting surface.) The SM91 can be used for individual instrument pickup, e.g., mounted inside the lid of a grand piano or on the floor next to a bass drum. The SM91 is powered either by two readily available 9-volt alkaline batteries (300 hours continuous battery life) or by an 11-to-52 Vdc simplex (phantom) supply from broadcast, sound-reinforcement, or recording equipment.

Technical Specifications

– Half-cardioid
– 20 Hz – 20 KHz
– Max 146 dB-SPL (Max.)
– Sensitivity 0.35mV/Pa