Shure ULXD2/B58 – ULX-D Digital Handheld Wireless Transmitter with Beta 58A (H50)

Product Overview

The Shure ULXD2/B58 is a digital handheld wireless microphone transmitter for the ULX-D system, equipped with the Beta 58A supercardioid dynamic capsule. Operating in the H50 band (534–598 MHz), it delivers 24-bit/48 kHz digital audio over ULX-D digital wireless infrastructure for live performance, speech reinforcement, and commercial AV applications. The Beta 58A's tight supercardioid polar pattern and higher output make the ULXD2/B58 the choice for environments demanding greater feedback rejection and increased vocal presence in the mix.

Product Description

The Beta 58A supercardioid dynamic capsule offers a neodymium element for consistently high output, a uniform supercardioid polar response that minimizes off-axis pickup, and an extended high-frequency response from 50 Hz to 16 kHz—delivering more presence and clarity than the SM58 for professional live sound, house of worship, and auditorium deployments. The ULX-D digital platform provides >120 dB dynamic range and AES 256 encryption for broadcast-quality, secure wireless audio. Compatible with ULX-D and QLX-D receivers. For the H50 quad-channel receiver, see the Shure ULXD4Q Quad-Channel Receiver (H50).

Key Features

• Beta 58A Supercardioid Dynamic Capsule — Neodymium element with tight supercardioid polar response delivers higher output and greater feedback rejection for high-gain live environments.
• Extended High-Frequency Response — 50 Hz–16 kHz capsule response provides increased presence and vocal clarity for professional speech and performance applications.
• 24-Bit/48 kHz Digital Audio — ULX-D wireless delivers broadcast-quality audio with >120 dB dynamic range and flat system response.
• AES 256 Encryption — Secures wireless audio for government, corporate, and commercial event applications.
• High Density Mode — Supports up to 63 simultaneous transmitters in one 8 MHz TV channel for large-scale multi-channel deployments.
• ULX-D and QLX-D Compatible — Integrates with ULX-D and QLX-D receivers in the H50 band for deployment flexibility.
• Replaceable Capsule — Compatible with RPW series wireless replacement cartridges for capsule changes without replacing the transmitter body.

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/B58 H50?
The ULXD2/B58=-H50 is compatible with ULX-D receivers (ULXD4, ULXD4D, ULXD4Q) and QLX-D receivers in the H50 band. All components must match the same frequency band.

How does the Beta 58A compare to the SM58 for live sound use?
The Beta 58A is a supercardioid dynamic with a neodymium element, offering higher output, tighter polar pattern (better feedback rejection), and slightly extended high-frequency response compared to the SM58. It is generally preferred in louder environments and larger rooms where feedback headroom is critical.

Can the capsule be swapped for a different Shure cartridge?
Yes. The ULXD2 body accepts RPW series wireless replacement cartridges without replacing the transmitter, including SM58 (RPW112), SM86 (RPW114), Beta 87A (RPW120), and others.

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