Shure ULXD2/SM87 Digital Handheld Wireless Microphone Transmitter with SM87A Capsule (H50: 534 to 598 MHz)

Overview

The Shure ULXD2/SM87=-H50 is a digital handheld wireless microphone transmitter designed to deliver clear and reliable vocal performance in professional environments. Operating within the 534 to 598 MHz frequency band, it pairs with ULX-D receivers to provide secure, high-quality audio transmission. Equipped with the SM87A supercardioid condenser capsule, it handles sound sources up to 140.5 dB SPL while minimizing background noise, making it suitable for stage performances, broadcast studios, and conferences. The transmitter supports 24-bit/48 kHz digital audio over distances up to 100 meters, ensuring detailed sound clarity for demanding applications.

Key features

• SM87A supercardioid condenser capsule captures vocals with precision and reduces unwanted ambient noise
• Interchangeable capsule design allows customization for different audio needs without replacing the entire transmitter
• Infrared sync simplifies frequency matching with receivers for quick and hassle-free setup
• Automatic gain control maintains consistent audio levels, preventing distortion or dropouts during performances
• Selectable RF output power levels (1, 10, or 20 mW) balance transmission range and battery life according to user requirements
• Backlit LCD screen provides clear visibility of settings and status in various lighting conditions
• Durable aluminum housing protects the transmitter during rigorous use and travel
• Built-in mute switch offers immediate control over audio output during live events or presentations
• External charging contacts enable convenient recharging when docked with compatible accessories

Key specs

• Frequency band: 534 to 598 MHz (H50)
• Audio resolution: 24-bit/48 kHz digital transmission
• Maximum sound pressure level: 140.5 dB SPL
• Transmission range: up to 100 meters
• RF output power: selectable 1, 10, or 20 mW
• Battery life: up to 11 hours on AA batteries, over 12 hours with SB900A rechargeable battery
• Encryption: AES 256-bit for secure wireless audio
• Housing: durable aluminum

Connectivity and compatibility

This transmitter is designed to work seamlessly with Shure ULX-D receivers, ensuring secure and interference-free wireless audio transmission. Its infrared sync feature allows quick pairing with compatible receivers, making it easy to integrate into existing professional audio setups. The interchangeable capsule system provides flexibility for users who may want to switch capsules for different sound characteristics or applications.

Performance and reliability

The ULXD2/SM87=-H50 offers consistent and clear audio performance thanks to its 24-bit/48 kHz digital transmission and automatic gain control. Its robust aluminum housing withstands the demands of live performances and frequent transport. The selectable RF power levels help optimize battery life and range, while AES 256-bit encryption ensures that audio remains secure from interference or interception. With up to 12 hours of operation on rechargeable batteries, it supports long events without interruption.

Ideal uses and environments

This wireless microphone transmitter is well suited for vocalists, broadcasters, and event professionals who need dependable sound quality and secure transmission. It fits well in live music venues, broadcast studios, conference rooms, and other professional settings where clear vocal capture and reliable wireless performance are essential. Its versatile design and long battery life make it a strong choice for users who require flexibility and durability in demanding environments.