SM57-LC

Overview

The Shure SM57-LC is a dynamic instrument microphone featuring a cardioid polar pattern. It utilizes a custom engineered gradient pressure differential design with a brass cast screen grille and a die-cast base for durability. The unit includes an integrated on/off switch to control audio output. Technical specifications include a frequency response of 40 Hz to 15 kHz, a sensitivity of -56.5 dB (1.7 mV) re 1V at 1 Pa, and an impedance of 150 ohms. It operates within a temperature range of -20°C to +50°C.

Feature Summary

• Integrated on/off switch for immediate signal control
• Brass cast screen grille provides physical protection against impact
• Die-cast base ensures structural stability during mounting

Applications

• Snare drum and tom-tom recording
• Guitar amplifier cabinet miking
• Brass and woodwind instrument capture

Procurement Notes

Verify the specific suffix 'LC' indicates the inclusion of the on/off switch mechanism. Confirm that the purchased unit matches the standard SM57 electrical specifications while retaining the switching functionality. Ensure packaging integrity to prevent damage to the internal capsule assembly during transit.

Selection Notes

Select this variant when manual muting capability is required without external hardware. It serves as a direct functional upgrade over the standard non-switching model for live performance environments where rapid silence is necessary. Verify compatibility with existing XLR cabling infrastructure.

Part Context

This model belongs to Shure's Beta series lineage of dynamic microphones. It shares the same acoustic core and rugged construction philosophy as the standard SM57 but adds user-controllable switching. It is designed for professional studio and stage applications requiring reliable transient response.

Replacement Considerations

The standard Shure SM57 is the primary equivalent lacking the switch. No other manufacturers produce identical models with this specific integrated switching feature in the same form factor.