SHURE KSM137/SL Microphone

Shure KSM137/SL Cardioid Instrument Condenser Microphone

The Shure KSM137/SL is a premium, end-address condenser microphone designed for demanding studio recordings and live sound reinforcement. This model features a cardioid polar pattern and is valued for its ability to withstand extremely high sound pressure levels and reproduce a natural, neutral instrument sound. The microphone uses a Class A discrete transformerless preamplifier, which ensures transparent sound, extremely fast transient response, and eliminates crossover and harmonic distortion.

The KSM137 stands out for its flexibility: it has an integrated 3-position pad switch, allowing sensitivity reduction (0 dB, -15 dB, -25 dB) for working with extremely loud sources such as drums or guitar amplifiers. There is also a 3-position low-frequency filter to control background noise and the proximity effect. The ultra-thin (2.5-micron) 24-karat gold-plated diaphragm ensures accurate high-frequency capture and nuance reproduction.

Key Features

• Capsule: Ultra-thin, gold-layered Mylar® diaphragm for excellent transient response.
• Preamplifier: Class A, transformerless – for transparent and fast signal.
• Switches: 3-position pad (0, -15, -25 dB) and 3-position low-frequency filter.
• Maximum SPL: Withstands extreme sound pressure (up to 170 dB with pad engaged).
• Components: High-quality electronic components and gold-plated connectors.
• Housing: Durable brass body with champagne finish.

Technical Specifications

• Type: Electret Condenser
• Polar Pattern: Cardioid
• Frequency Response: 20 Hz – 20,000 Hz
• Output Impedance: 150 Ω
• Sensitivity: -37 dBV/Pa (14.1 mV)
• Maximum SPL (at 1 kHz): 145 dB (0 dB), 160 dB (-15 dB), 170 dB (-25 dB)
• Signal-to-Noise Ratio: 80 dB
• Self-Noise: 14 dB (A-weighted)
• Connector: 3-pin XLR Male connector
• Power Requirements: 48 V DC phantom power (11–52 V DC)
• Weight: Approximately 100 g
• Dimensions: 20 mm diameter, 122 mm length

Included Accessories

• 1 x Shure KSM137/SL microphone
• 1 x A57F break-resistant microphone clip
• 1 x A100WS windscreen
• 1 x A137C carrying case

Recommended for:

• Acoustic instruments (guitar, piano, strings).
• Drum cymbals (Overheads, Hi-Hat).
• Wind instruments and orchestras.
• Studios looking for a versatile and precise "pencil" type microphone.