Shure ULXD2/SM58 – ULX-D Digital Handheld Wireless Transmitter with SM58 (J50A)

Product Overview

The Shure ULXD2/SM58 is a digital handheld wireless microphone transmitter for the ULX-D system, equipped with the industry-standard SM58 dynamic cardioid capsule. Operating in the J50A band (554–616 MHz), it delivers 24-bit/48 kHz digital audio over ULX-D digital wireless infrastructure for speech reinforcement, live performance, and commercial AV installations. Combining the proven SM58 vocal capsule with ULX-D's advanced digital RF performance and AES 256 encryption, the ULXD2/SM58 is a practical wireless handheld for venues and integrators standardized on the ULX-D platform.

Product Description

The SM58 cardioid dynamic capsule is the most widely deployed vocal microphone in live sound, making the ULXD2/SM58 an immediate fit for houses of worship, corporate event venues, auditoriums, and commercial meeting spaces already familiar with SM58 performance characteristics. The ULX-D digital platform delivers >120 dB dynamic range with a flat 20 Hz–20 kHz response, well beyond what the SM58 capsule itself requires, ensuring the transmitter is never the limiting factor. ULX-D's High Density mode supports up to 22 active transmitters in standard mode or up to 63 in a single 8 MHz TV channel for multi-channel deployments. For a compatible 4-channel rack-mount receiver, see the Shure ULXD4Q Quad-Channel Receiver (J50A).

Key Features

• SM58 Dynamic Cardioid Capsule — The world's most widely used live vocal microphone capsule, delivering consistent, reliable performance in high-SPL stage and presentation environments.
• 24-Bit/48 kHz Digital Audio — ULX-D digital wireless delivers broadcast-quality audio with >120 dB dynamic range and a flat 20 Hz–20 kHz frequency response.
• AES 256 Encryption — Secures wireless audio transmission for corporate, government, and event applications requiring audio privacy.
• High Density Mode — Supports up to 63 simultaneous transmitters in one 8 MHz TV channel for large-scale multi-channel wireless deployments.
• ULX-D and QLX-D Compatible — Works with ULX-D (ULXD4, ULXD4D, ULXD4Q) and QLX-D receivers in the matching frequency band for deployment flexibility.
• Replaceable Capsule — Capsule can be swapped for other RPW series wireless cartridges (e.g., RPW112 for SM58 replacement) without replacing the transmitter body.
• Digital Predictive Switching Diversity — When used with compatible ULX-D receivers, advanced diversity ensures uninterrupted audio in challenging RF environments.

Typical Applications

• House of worship
• Auditorium
• Commercial meeting space
• All-hands room
• Multi-purpose room
• Government space

Technical Specifications

Frequently Asked Questions

What receivers are compatible with the ULXD2/SM58 J50A?
The ULXD2/SM58=-J50A is compatible with ULX-D receivers (ULXD4, ULXD4D, ULXD4Q) and QLX-D receivers in the J50A band. All components must match frequency bands for proper operation.

Can I use standard AA batteries?
Yes. The ULXD2/SM58 accepts standard AA batteries. For rechargeable operation, the optional SB900C lithium-ion battery with a compatible Shure charger (SBC200, SBC800, etc.) is recommended for production environments.

Can the capsule be swapped to a different Shure capsule?
Yes. The transmitter body accepts RPW series replacement wireless cartridges, allowing the capsule to be changed to Beta 58A (RPW118), SM86 (RPW114), or other compatible cartridges without replacing the transmitter.

Is this transmitter compatible with ULX-D High Density mode?
Yes. When paired with an HD-capable ULX-D receiver, the ULXD2/SM58 supports High Density mode, enabling up to 63 simultaneous transmitters in one 8 MHz TV channel.