Shure QLXD2/SM58 Handheld Transmitter with SM58® Microphone

Product Overview

The Shure QLXD2/SM58 is a QLD-D digital wireless handheld transmitter fitted with the industry-standard SM58 cardioid dynamic capsule, delivering 24-bit digital audio quality across a 100-meter operating range. Widely specified for commercial AV integrations in houses of worship, conference rooms, government spaces, and training rooms, the SM58 capsule's tailored vocal frequency response, built-in shock mount, and pop filter make it a practical, low-maintenance choice for wireless microphone deployments where consistent vocal performance and durability are priorities.

Product Description

The QLXD2/SM58 combines the proven SM58 dynamic capsule with the transparent 24-bit digital wireless performance of the QLXD2 transmitter platform. The SM58's cardioid polar pattern reduces off-axis pickup and ambient noise buildup in reflective presentation rooms, while the QLXD2's efficient RF spectrum usage supports multi-channel deployments in RF-dense commercial environments. One-touch IR sync with a paired QLXD4 receiver simplifies system setup, and the all-metal transmitter body provides the durability expected in high-rotation commercial AV and live event applications. For a condenser alternative, see the Shure QLXD2/B87C.

Key Features

• SM58 Cardioid Dynamic Capsule — The SM58's tailored vocal frequency response, cardioid polar pattern, and built-in pop filter and shock mount deliver consistent wireless vocal performance in live and installed commercial environments.
• 24-Bit Digital Audio — Transparent QLD-D digital wireless transmission captures the full output of the SM58 capsule with no added noise floor or companding artifacts.
• 100-Meter Operating Range — Maintains clear, uninterrupted signal up to 100 m (330 ft) across large presentation rooms, sanctuaries, auditoriums, and multi-zone AV deployments.
• One-Touch IR Sync — Infrared sync with a paired QLXD4 receiver enables rapid frequency coordination and commissioning in multi-channel installations.
• Interchangeable RPW Capsule System — Compatible with Shure's full RPW capsule lineup, allowing future capsule changes without replacing the transmitter body.
• All-Metal Construction — Touring-grade metal housing provides long-term reliability in high-use commercial AV, worship, and live event environments.
• Efficient RF Spectrum Usage — QLD-D digital modulation supports higher channel counts in RF-dense commercial AV environments.
• Optional SB900C Rechargeable Battery — Lithium-ion option provides up to 10 hours of runtime with hours-and-minutes battery status reporting.

Typical Applications

• House of worship
• Conference room
• Government space
• Auditorium
• Training room
• Broadcast studio

Technical Specifications

Frequently Asked Questions

Why choose the SM58 capsule for a commercial AV installation?
The SM58 is a proven, low-maintenance dynamic capsule with broad commercial AV adoption. Its tailored vocal response, built-in pop filter, and cardioid pattern reduce feedback and room noise in installed environments such as conference rooms, government chambers, and houses of worship where the microphone is used by multiple presenters.

Which receiver is required for the QLXD2/SM58?
A Shure QLXD4 single-channel or QLXD4Q quad-channel receiver in the same frequency band is required. Frequency bands must match for proper system operation.

Can the SM58 capsule be swapped for a different capsule type?
Yes. The QLXD2 transmitter body accepts Shure's full RPW capsule lineup, including condenser options like the Beta 87C and KSM9, without requiring a transmitter body replacement.

Is the QLXD2/SM58 suitable for multi-channel deployment in a large venue?
Yes. The QLD-D system's efficient RF spectrum usage supports multiple simultaneous channels in RF-dense environments. For multi-channel configurations, specify QLXD4Q quad receivers to maximize rack efficiency.