Shure SLXD24/B58 Digital Wireless Vocal System with Beta 58A Handheld Transmitter

Product Overview

The Shure SLXD24/B58 is a single-channel digital wireless vocal system pairing the SLXD4 receiver with the SLXD2/B58 handheld transmitter and Beta 58A supercardioid dynamic capsule, delivering professional wireless vocal performance for live sound, installed AV, and commercial event production. The Beta 58A’s supercardioid polar pattern and neodymium magnet design provide tight directional pickup with excellent feedback rejection, making the SLXD24/B58 digital wireless system well suited to high-SPL live environments such as houses of worship, auditoriums, and conference venues with active loudspeaker systems. The system delivers 24-bit digital audio with over 120 dB of dynamic range.

Product Description

The Shure SLXD24/B58 combines the professional-grade Beta 58A supercardioid dynamic microphone with the SLX-D digital wireless platform for transparent, reliable wireless vocal performance in commercial AV installations. The Beta 58A’s supercardioid pattern provides tighter off-axis rejection than standard cardioid dynamic microphones, reducing feedback and ambient noise pickup in live reinforcement environments. The SLXD4 half-rack receiver’s Digital Predictive Switching Diversity maintains stable RF reception before dropouts occur, while the 3.2 ms system latency keeps audio-video synchronization natural in live sound applications. Up to 32 simultaneous SLX-D systems operate within a single frequency band, supporting scalable multi-channel wireless deployments in conference centers, auditoriums, and multipurpose rooms.

Key Features

• Beta 58A Supercardioid Dynamic Capsule — Delivers tight, focused pickup with a supercardioid polar pattern and neodymium magnet for high SPL handling and feedback rejection in live commercial AV environments.
• 24-Bit Digital Audio with 120+ dB Dynamic Range — SLX-D digital transmission preserves full vocal fidelity with transparent 24-bit resolution and over 120 dB of dynamic range.
• 3.2 ms System Latency — Near-imperceptible latency supports live reinforcement and in-ear monitoring where timing precision is required.
• Digital Predictive Switching Diversity — Proactively switches antennas before signal degradation occurs, ensuring continuous wireless reception in congested RF environments.
• Up to 32 Simultaneous Systems — Spectrum-efficient digital transmission enables high-density wireless deployments in large commercial venues and multi-room installations.
• SLXD4 Half-Rack Receiver with LCD Interface — All-metal half-rack form factor with backlit LCD metering for RF, battery status, and audio output provides constant system visibility.
• XLR and ¼" Outputs with 60 dB Gain Control — Flexible output connectivity and adjustable gain support direct integration with DSP processors, mixing consoles, and installed AV systems.

Typical Applications

• House of worship live vocal reinforcement requiring supercardioid feedback rejection
• Conference room and all-hands room wireless microphone systems for active presenters
• Auditorium and multipurpose venue vocal systems with high SPL requirements
• Government meeting spaces and municipal venues with permanent wireless infrastructure
• Corporate event and hotel ballroom wireless microphone deployments

Technical Specifications

Frequently Asked Questions

How does the Beta 58A differ from the SM58 for live wireless use?
The Beta 58A uses a supercardioid polar pattern versus the SM58’s cardioid, providing tighter off-axis rejection and higher SPL handling. This results in better feedback rejection in high-volume live environments, though the supercardioid pattern requires more consistent mic technique to maintain on-axis pickup.

Is the SLXD2/B58 transmitter compatible with multi-channel SLXD receivers?
Yes. The SLXD2/B58 transmitter is compatible with SLXD4D (dual) and SLXD4Q (quad) receivers within the same frequency band, enabling integration into larger SLX-D wireless systems.

How many SLXD24/B58 systems can operate simultaneously in a venue?
Up to 32 SLX-D systems can operate simultaneously within the same frequency band, accommodating large-scale multi-channel wireless deployments.

Does the system include a warranty?
Yes. Shure covers this system with a two-year limited warranty on manufacturing defects. Authorized Shure service centers provide warranty repairs and technical support.

What connectors does the SLXD4 receiver provide for integration into an AV system?
The SLXD4 provides both an XLR balanced output (switchable between mic and line level) and a ¼" unbalanced instrument output, along with 60 dB of adjustable gain for direct connection to professional mixing consoles, DSP processors, and AV system input modules.