Shure KSM137/SL STEREO

 (Shure KSM 137 stereo)

Stereo Instrument Condenser Microphones

Shure KSM137 Stereo Pair is a matched set of small-diaphragm condenser microphones designed for accurate stereo recording and professional live sound applications. Featuring consistent cardioid polar patterns, fast transient response, and onboard pad and filter options, this pair is ideal for drum overheads, acoustic instruments, ensembles, and ambient capture.

Shure KSM137 Stereo Pair Competitive Differences

• Factory-matched pair for accurate stereo imaging and consistent response
• Ultra-thin 2.5 micron, 24-karat gold-layered diaphragm for precise transient capture
• Three-position attenuation switch with 0 dB, -15 dB, and -25 dB settings for high SPL sources
• Three-position low-frequency filter for controlling rumble and proximity effect
• Class A, transformerless preamplifier for transparent, low-distortion sound

Shure KSM137 Stereo Pair Description

The Shure KSM137 Stereo Pair is engineered for users who need precise stereo recordings with consistent tonal balance between microphones. Each mic is carefully matched to ensure accurate imaging, making this set a reliable choice for stereo techniques such as XY, ORTF, and spaced pair configurations.

Designed with a cardioid pickup pattern and a highly responsive diaphragm, these microphones capture fine detail and fast transients with clarity. This makes them especially effective for drum overheads, acoustic guitar, piano, strings, choirs, and live ensemble recordings where definition and balance are critical.

Built to handle demanding environments, the KSM137 microphones include switchable attenuation pads that allow them to capture extremely loud sources without distortion. The selectable low-frequency filters provide additional control over rumble, stage noise, and low-end buildup, making them adaptable across a wide range of studio and live applications.

Whether used in professional recording studios, houses of worship, broadcast setups, or touring rigs, the KSM137 Stereo Pair delivers consistent performance, durability, and detailed sound reproduction.

KSM137 Stereo Pair Features

• Matched pair of small-diaphragm condenser microphones
• Cardioid polar pattern for focused pickup and isolation
• Ultra-thin 2.5 micron gold-layered Mylar diaphragm
• Class A, discrete, transformerless preamplifier
• Three-position attenuation switch: 0 dB, -15 dB, -25 dB
• Three-position low-frequency filter
• Subsonic filter reduces mechanical noise and rumble
• Balanced XLR output
• Optimized for stereo recording techniques

KSM137 Stereo Pair Specifications

• Cartridge Type: Electret Condenser
• Polar Pattern: Cardioid
• Frequency Response: 20 Hz to 20 kHz
• Output Impedance: 150 Ω
• Sensitivity: -37 dBV/Pa (14.1 mV) at 1 kHz
• Maximum SPL: Up to 170 dB SPL (pad on, 5000 Ω load)
• Signal-to-Noise Ratio: 80 dB
• Self-Noise: 14 dB SPL-A
• Low-Frequency Filter: Flat, -6 dB/octave below 115 Hz, or -18 dB/octave below 80 Hz
• Power Requirements: 11 to 52 V DC phantom power
• Current Draw: 4.7 mA maximum
• Weight (per microphone): 3.5 oz (100 g)

What's In The Box

• 2 x KSM137 Microphones (matched pair)
• 2 x Microphone clips
• 2 x Foam windscreens
• Carrying case