EMG 81 Guitar Pickup, (Used, Comm)

The EMG 81 is an active humbucking pickup designed for electric guitar and built around ceramic magnets with a high-output active preamp system. It is primarily intended for bridge-position use and became one of the most widely recognised active pickups in metal and hard rock guitar setups. The pickup uses low-impedance circuitry housed in a sealed full-size humbucker casing powered by a 9V battery. 

The design focuses on fast transient response, compressed dynamics, and extremely tight low-end clarity under high-gain amplification. The ceramic magnet structure produces aggressive upper-mid emphasis, sharp harmonic articulation, and controlled bass response while maintaining note separation during heavily distorted playing. The EMG 81 is strongly associated with palm-muted rhythm tones, fast picking precision, and reduced background noise compared with passive high-output humbuckers.

The pickup is commonly paired with models such as the EMG 60 or EMG 85 in dual-humbucker configurations and remains one of EMG’s longest-running active designs. Its compact magnetic aperture and active circuitry produce a focused, immediate response that became closely linked with modern metal guitar tones from the 1980s onward.