Shure SLXD24+/B87A-G57 Digital Wireless Vocal System with Beta 87A Handheld Transmitter

Product Overview

The Shure SLXD24/B87A is a single-channel digital wireless vocal system combining the SLXD4 receiver with the SLXD2/B87A handheld transmitter featuring the Beta 87A supercardioid condenser capsule, delivering studio-quality wireless vocals for live sound, installed AV, and corporate event production. The Beta 87A’s supercardioid pickup pattern and condenser transducer provide extended high-frequency detail and exceptional off-axis rejection, making the SLXD24/B87A digital wireless vocal system the choice for applications where vocal clarity and feedback control in reverberant commercial spaces are priorities. The system operates on the SLX-D platform with 24-bit audio and over 120 dB of dynamic range.

Product Description

The Shure SLXD24/B87A brings the tonal quality of the Beta 87A condenser microphone to the SLX-D digital wireless platform, ideal for lead vocalists, corporate presenters, and AV installations where microphone performance is as important as wireless reliability. The Beta 87A supercardioid pattern provides tight pickup with greater off-axis rejection than cardioid designs, reducing feedback and room noise in reverberant auditoriums, hotel ballrooms, and multipurpose spaces. The SLXD4 receiver delivers Digital Predictive Switching Diversity, 3.2 ms latency, and 60 dB of gain control, integrating directly with professional DSP processors and mixing consoles via XLR or ¼" output. Up to 32 simultaneous SLX-D systems can operate concurrently within a frequency band.

Key Features

• Beta 87A Supercardioid Condenser Capsule — Delivers studio-quality vocal clarity with a supercardioid polar pattern for tight pickup and maximum off-axis rejection, minimizing feedback and ambient noise in live commercial environments.
• 24-Bit Digital Audio with 120+ dB Dynamic Range — SLX-D digital transmission preserves the full frequency detail of the condenser capsule, delivering transparent audio throughout the signal chain.
• 3.2 ms System Latency — Low latency enables natural audio-video synchronization in live reinforcement and supports in-ear monitoring applications.
• Digital Predictive Switching Diversity — Maintains stable wireless reception by switching antennas before signal dropouts occur, ensuring consistent audio in RF-congested commercial environments.
• Up to 32 Simultaneous Systems — SLX-D spectrum-efficient digital transmission supports high-density wireless deployments for large events and permanent AV installations.
• SLXD4 Half-Rack Receiver with LCD Metering — All-metal half-rack receiver with backlit LCD displays RF signal, battery level, and audio output for continuous system monitoring.
• XLR and ¼" Outputs with 60 dB Gain Control — Dual outputs accommodate professional mixing consoles, DSP processors, and other standard AV infrastructure without additional adapters.

Typical Applications

• Corporate event production and all-hands room vocal reinforcement for lead presenters
• House of worship vocal systems requiring condenser-quality wireless microphone performance
• Auditorium and performing arts venue wireless vocal deployments
• Hotel ballroom and commercial event space wireless microphone systems
• Broadcast and live-streaming production requiring wireless studio-quality vocals

Technical Specifications

Frequently Asked Questions

What is the difference between the Beta 87A and a standard cardioid dynamic microphone for wireless use?
The Beta 87A is a supercardioid condenser microphone, providing a tighter pickup pattern and extended high-frequency response compared to a standard cardioid dynamic. This results in greater off-axis rejection and a more detailed vocal character, at the cost of slightly higher sensitivity to handling noise and phantom power requirements (handled internally by the SLXD2 transmitter).

Is the SLXD2/B87A transmitter compatible with other SLXD receivers?
Yes. The SLXD2/B87A is compatible with SLXD4D (dual) and SLXD4Q (quad) receivers within the same frequency band for integration into larger multi-channel SLX-D systems.

How many systems can operate at the same venue simultaneously?
Up to 32 SLX-D systems can operate concurrently within the same frequency band, supporting high-channel-count AV deployments in large auditoriums and conference centers.

Does this system require phantom power for the condenser capsule?
No. The SLXD2/B87A transmitter provides the necessary power for the Beta 87A condenser capsule internally. No external phantom power from the receiver or mixing console is required.

What warranty does this system carry?
The SLXD24/B87A system is covered by Shure’s two-year limited warranty on manufacturing defects. Shure’s authorized service network provides repair and support for commercial installations.