Shure QLXD2/B58 Handheld Transmitter with Beta®58A Microphone

Product Overview

The Shure QLXD2/B58 is a professional QLX-D wireless handheld transmitter designed for commercial AV deployments requiring reliable, high-fidelity vocal capture. Paired with the Beta 58A supercardioid dynamic capsule, it delivers transparent 24-bit digital audio across a 100 m (328 ft) operating range — well-suited for presentation spaces, houses of worship, government spaces, and all-hands room installations. Selectable frequency bands and AES-256 encryption make it a practical choice for managed AV environments where RF coordination and secure transmission are operational requirements. IR sync with the QLXD4 receiver streamlines commissioning across multi-channel wireless deployments.

Product Description

The QLXD2/B58 operates on Shure's QLX-D digital wireless platform, transmitting audio at 24-bit depth with less than 2.9 ms of system latency — specifications that satisfy AV integrators and facilities managers deploying wireless across boardrooms, training rooms, and auditoriums. The machined aluminum housing withstands the daily demands of shared-use commercial environments, while one-button IR sync reduces commissioning time on multi-channel installs. Available in five frequency bands (G50, H50, J50A, V50, X52), the system supports over 60 compatible channels within a single band — essential for RF-dense venues with existing wireless infrastructure. AES-256 encryption addresses security requirements for sensitive facilities. The transmitter runs on two AA alkaline batteries (approximately 8 hours) or the Shure SB900C rechargeable lithium-ion battery (over 11 hours on standard UHF bands).

For a complete QLX-D system, the QLXD2/B58 pairs with the Shure QLXD4 single-channel digital wireless receiver, available at Creation Networks. Integrators requiring a condenser capsule may also consider the Shure QLXD2/B87A with Beta 87A capsule.

Key Features

• 24-Bit Digital Audio — Shure's proprietary digital transmission delivers an audio dynamic range exceeding 120 dB (A-weighted, typical), meeting professional-grade clarity requirements for vocal reinforcement in commercial AV installations.
• 100 m (328 ft) Operating Range — Reliable line-of-sight RF coverage for large conference rooms, auditoriums, and multi-purpose rooms without antenna distribution in standard deployments.
• Beta 58A Supercardioid Dynamic Capsule — Tight supercardioid pickup pattern rejects off-axis sources and stage noise, making this transmitter well-suited for high-SPL environments and proximity to monitor speakers.
• AES-256 Encryption — End-to-end audio encryption for security-conscious deployments including government spaces, executive boardrooms, and facilities with confidentiality requirements.
• IR Sync for Fast Channel Setup — One-button IR synchronization with the QLXD4 receiver transfers frequency and group settings in seconds, reducing setup time during installation or event changeovers.
• Selectable RF Power (1 mW / 10 mW) — Two transmit power levels allow integrators to balance range against RF coexistence in dense wireless environments.
• Dual Power Options — Two AA alkaline batteries provide approximately 8 hours of runtime; the optional SB900C rechargeable Li-Ion battery delivers over 11 hours on standard UHF bands.
• 60+ Compatible Channels per Band — High-density RF spectrum efficiency supports large-scale multi-channel deployments within a single frequency band.
• Network Control via Wireless Workbench 6 and ShurePlus Channels — Full remote monitoring and control via the Ethernet-connected QLXD4 receiver; compatible with AMX and Crestron control systems for integration into building automation workflows.
• Interchangeable Capsule Design — The QLXD2 body accepts Shure wireless RPW-series replacement capsules (SM58, Beta 87A, KSM9, and others), allowing capsule changes without replacing the transmitter.

Typical Applications

• Boardroom and executive conference room wireless vocal systems
• All-hands room and town hall presentation environments
• House of worship and auditorium vocal reinforcement
• Government space wireless installations with encryption requirements
• Multi-purpose room and training room AV systems
• Broadcast studio and corporate video production

Technical Specifications

Frequently Asked Questions

What receiver is required for the QLXD2/B58?
The QLXD2/B58 is designed to operate with the Shure QLXD4 single-channel digital wireless receiver. The receiver and transmitter must be in the same frequency band.

Is the QLXD2/B58 compatible with ULX-D components?
Yes. QLX-D transmitters and ULX-D receivers can be paired for cross-system use, provided encryption is set to Off. IR sync between QLX-D and ULXD6/8 transmitters is possible on firmware version 2.1.16 or newer. Manual frequency matching is required.

What frequency band should I order for my region?
Frequency band availability is determined by local RF licensing. Use Shure's Frequency Finder tool at shure.com to confirm which bands are authorized in your area. Contact Creation Networks for assistance selecting the correct band for your installation.

Can I use rechargeable batteries?
Yes. The transmitter is compatible with the Shure SB900C lithium-ion rechargeable battery, providing over 11 hours of runtime on standard UHF bands. A compatible Shure charger (such as the SBC200 dual docking charger) is required and sold separately.

Does the system support AES encryption for secure installations?
Yes. The QLX-D system supports AES-256 audio encryption, enabled via the QLXD4 receiver menu. Encryption is compatible between QLX-D components only; cross-system use with ULX-D requires encryption to be disabled on both units.

Can the capsule be replaced or upgraded?
Yes. The QLXD2 transmitter body accepts Shure wireless RPW-series replacement capsules, including the SM58, SM86, Beta 87A, Beta 87C, and KSM9. This allows AV integrators to optimize capsule selection for specific acoustic environments without purchasing a new transmitter.

Does the QLXD4 receiver integrate with Crestron or AMX control systems?
Yes. The QLXD4 connects to external control systems via Ethernet (TCP/IP, port 2202), supporting AMX and Crestron integration for unified room control and monitoring workflows.