Shure KSM137/SL STEREO Cardioid Instrument Microphone Pair

The Shure KSM137/SL Stereo Pair consists of two factory-matched small-diaphragm cardioid condenser microphones engineered for precise instrument capture in both studio and live sound environments. Each microphone features a gold-layered Mylar diaphragm that provides extended high-frequency response and exceptional transient detail, making the pair particularly effective on acoustic instruments such as guitars, pianos, and drum overheads. The transformerless preamplifier design minimizes distortion and coloration, delivering a clean, transparent signal path that faithfully reproduces the character of the source.

Practical features include a switchable highpass filter for managing low-frequency rumble and proximity effect, a three-position pad for handling high-SPL sources without clipping, and a rugged all-metal body built for touring and session use. The stereo pair ships with a carrying case and a stereo microphone adapter that simplifies XY or near-coincident setups, allowing repeatable placement from session to session. Because the two units are sensitivity-matched at the factory, users can trust consistent left-right balance without having to calibrate gain offsets, streamlining stereo recording workflows.