Shure SM39 Cardioid Headworn Microphone, LEMO Termination

The SM39 Singing Headset Microphone is designed for performers who demand the freedom to move boldly without sacrificing sound quality. Its lightweight, low-profile design provides legendary comfort and a secure fit, allowing performers to move with confidence. The SM39 integrates seamlessly with Axient Digital and all Shure Wireless systems, providing uncompromised, reliable sound for any environment. Its cardioid polar pattern and over 20 dB of off-axis rejection ensure that every note is clear and precise, even during the most dynamic performances. Sweat-resistant and built with an ergonomic fit, the SM39 delivers unmatched comfort and flawless sound that performers need for unstoppable performances.

Features

• Axient Digital Compatibility: Integrates seamlessly with Axient Digital and all Shure Wireless for reliable performance during every show.
• Secure, Low-Profile Fit: Keeps the microphone securely in place with an adjustable, flexible boom arm, ensuring perfect mic placement without restricting movement.
• Superior Sound Quality: Delivers clear vocals with a cardioid polar pattern and over 20 dB of off axis rejection, guaranteeing exceptional audio even in the loudest environments.
• Ergonomic Design for Lasting Comfort: Contours naturally to the ear and jawline, providing a low-profile fit that performers can comfortably wear for extended periods.
• Performance in Any Environment: Includes indoor and outdoor windscreens to guarantee clear sound anytime, anywhere.
• Durable and Sweat Resistant: Features a hydrophobic coating that protects against sweat, maintaining high-quality sound during intense performances.

Specifications

Type: Electret Condenser
Polar Pattern: Cardioid
Frequency Response: 70 Hz to 20 kHz
Output Impendance (at 1 kHz, using RPM400 Preamplifier): 95 Ω
Sensitivity: SM39-LEMO: -40 dBV/Pa
Maximum SPL: SM39-LEMO: 134 dB SPL
Signal-to-Noise Ratio: SM39-LEMO: 72 dB
Dynamic Range: SM39-LEMO: 112 dB
Self Noise: SM39-LEMO: -112 dBV-A
Equivalent Output Noise: SM39-LEMO: 22 dB SPL-A
Polarity: Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1.
Cable: 1.5 m (59 in.)
Connector: LEMO
Power Requirements: +5 V DC (Recommended operating voltage provided at microphone connector on pin 2
relative to pin 1.)
Net Weight: SM39-LEMO: 54g (1.91 oz)