The Shure SM57-LC is a legendary dynamic instrument microphone, identical in acoustic performance to the standard SM57 but featuring a different connector. The "LC" denotes a permanently attached cable terminated with a specific connector, often a 3-pin XLR but sometimes a proprietary locking connector for direct integration into certain systems or console microphone inputs. This microphone is renowned worldwide for its versatility, durability, and consistent performance in both live sound and studio recording. Its cardioid polar pattern provides good isolation from ambient noise and off-axis sound, focusing on the source directly in front.

The SM57-LC features a tailored frequency response with a presence rise that helps instruments cut through a mix, making it exceptionally well-suited for miking guitar amplifiers, snare drums, toms, brass, and woodwinds. Its robust construction includes a shock-mounted cartridge to minimize handling noise and a durable steel mesh grille that can withstand physical impact. The microphone's ability to handle high sound pressure levels makes it a reliable choice for close-miking loud sources. The integrated cable of the LC model offers a fixed, reliable connection that eliminates the need for a separate microphone cable, which can be advantageous in permanent installations or for reducing setup time in specific applications.