Shure KSM137/SL Stereo KSM137 Stereo Pair, includes two KSM137, two Foam Windscreens, A27M Stereo Microphone Adapter and Carrying Case

Product Overview

The Shure KSM137/SL Stereo is a matched pair of small-diaphragm cardioid condenser microphones for stereo instrument recording and ensemble capture. The set includes the A27M stereo microphone adapter for mounting both microphones on a single stand, making it a ready-to-deploy solution for drum overheads, orchestras, and choirs. This stereo condenser microphone pair suits commercial recording studios, broadcast facilities, and houses of worship.

Product Description

The KSM137/SL Stereo pairs two KSM137 cardioid condenser microphones, each built around an ultra-thin 2.5-micron, 24-karat gold-layered Mylar diaphragm and a Class A, discrete, transformerless preamplifier for transparent, low-distortion capture. Each microphone carries a three-position attenuation switch (0/15/25 dB) for handling extremely high SPLs and a three-position low-frequency filter to manage proximity effect and rumble. The included A27M stereo adapter supports coincident and spaced stereo techniques such as XY and ORTF on one stand, giving AV system designers and recording engineers precise control over stereo imaging. For a broadcast studio, auditorium, or house of worship capturing orchestral, choral, or percussion sources, the matched pair delivers consistent off-axis response across both channels. The set ships with two foam windscreens, the A27M adapter, and a carrying case.

Key Features

• Matched Stereo Pair — Two KSM137 cardioid condensers provide consistent response across left and right channels for accurate stereo imaging.
• Included A27M Stereo Adapter — The stereo bar mounts both microphones on one stand and supports coincident and spaced stereo techniques.
• Class A Transformerless Preamplifier — Each microphone delivers transparent capture with no crossover distortion and minimal harmonic and intermodulation distortion.
• Three-Position Attenuation Switch — Selectable 0/15/25 dB pads let each microphone handle extremely high SPLs from drums and brass.
• Three-Position Low-Frequency Filter — Flat, 80 Hz, or 115 Hz settings counteract proximity effect and remove low-frequency rumble.
• Low Self-Noise — At 14 dB SPL-A per microphone, the pair supports quiet, detailed stereo recordings.

Typical Applications

• Broadcast studio
• House of worship
• Auditorium
• Multi-purpose room

Technical Specifications

Specifications below are per microphone; the set includes two matched KSM137 units.

Competitor Comparison

Frequently Asked Questions

Are the two microphones matched? Yes, the KSM137/SL Stereo is supplied as a stereo pair intended for consistent left/right response in stereo recording and reinforcement.

What stereo techniques does the included adapter support? The A27M stereo bar mounts both microphones on a single stand with adjustable angle and vertical separation, supporting coincident (XY) and near-coincident (ORTF) techniques.

Does each microphone need phantom power? Yes. Each microphone requires phantom power (48 V DC recommended, 11–52 V DC operating range) over a balanced XLR connection. Confirm your console or interface supplies phantom power on both channels.

Can the pair handle loud sources like drum overheads? Yes. Each microphone's three-position attenuation switch lets it capture high-SPL drums, percussion, and brass without overload.

What warranty and support are available? The pair is backed by Shure's manufacturer warranty and tech support. Contact our team through creationnetworks.net for procurement and integration assistance.