Details

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The Shure KSM137/SL is a premium end-address cardioid condenser instrument microphone designed for studio and live applications. Built for precision and durability, it offers superior transient response, high SPL handling, and excellent sound isolation.

With its gold-layered diaphragm, transformerless preamplifier, and switchable low-frequency filter, the KSM137 delivers studio-grade audio for a wide range of instruments — from acoustic and wind instruments to drums, percussion, and orchestral ensembles.

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Key Features (Bullet Points)

• Premium Cardioid Condenser Microphone – Ideal for studio recording and live sound reinforcement

• Highly Consistent Cardioid Polar Pattern – Excellent isolation and minimal off-axis coloration

• Gold-Layered Mylar Diaphragm – 2.5 μm, 24K gold for precise transient response

• Transformerless Preamplifier – Maximum transparency with minimal harmonic distortion

• Extended Frequency Response – Captures every detail across low and high frequencies

• 3-Position Switchable Pad – 0 dB, -15 dB, and -25 dB for handling SPLs up to 170 dB

• 3-Position Low-Frequency Filter – Reduces stage rumble and proximity effect

• Premium Electronic Components – Gold-plated connectors ensure durability and reliability

• Versatile Applications – Acoustic, wind, string, brass, percussion, and ambient miking

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Specifications

• Weight: 100 g / 0.22 lbs

• Dimensions (H × W × D): 122 × 20 × 20 mm / 4.803 × 0.787 × 0.787 in

• Transducer Type: Condenser

• Polar Pattern: Cardioid

• Frequency Response: 20 Hz – 20 kHz

• Sensitivity: -37 dBV/Pa (14.10 mV)

• Equivalent Self-Noise: 14 dB(A)

• Maximum SPL: 145 dB (170 dB with -25 dB pad)

• Impedance: 150 Ω

• Low-Cut Filter: Yes, 3-position switchable

• Attenuation Pad: Yes, 0/-15/-25 dB

• Output Connector: 3-Pin XLR

• Interchangeable Capsule: No

• Phantom Power Requirement: 11–52 VDC