Shure

Shure is an American audio company known for its innovative microphones and signal processors. During the 1960s, Shure introduced a range of rugged, affordable gear aimed at broadcast, recording, and live sound applications. Among the most distinctive was the Shure Level-Loc, a compact limiter designed to maintain consistent audio levels. Originally marketed for speech applications like paging and public address systems, the Level-Loc gained a cult following among engineers and musicians for its aggressive, gritty compression effect, which became popular in creative studio use, especially on drums and vocals.

Released in 1968

Shure Level-Loc Audio Level Controller

The Shure Level-Loc is a transistorised level controller that automatically reduces loud signals to maintain smooth and consistent output. Originally designed for speech clarity in public address systems, it later became prized in studios for its bold, aggressive compression.