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Shure ULXD1=-J50A Wireless Bodypack Transmitter J50A Band — main product image
Shure

Shure ULXD1=-J50A Wireless Bodypack Transmitter J50A Band

★★★★★4.8 (18 reviews)

AES-256 encrypted digital transmission with Shure's proprietary gain ranging — built for stages and installations where audio failure is never an option.

$567.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Shure ULXD1 is built for production environments where the words "RF dropout" or "audio failure" carry real consequences — large conference centers, convention installations, theatrical productions, and broadcast setups where a transmitter is expected to perform invisibly, shift after shift. Its defining engineering decision is Shure's proprietary gain ranging, which automatically adapts to the dynamic range of any connected source without requiring a technician to manually set transmitter gain. In practice, this translates to cleaner signal headroom on loud presenters and fuller response on quiet ones, without the distortion ceiling or noise floor problems that come from a gain setting that was optimized for a different speaker last time the case was opened.

The aluminum housing is dense and tightly built — light enough for presenter comfort but clearly engineered for durability, not cost reduction. AES-256 encryption runs transparently in the background, securing every transmission between the ULXD1 and its paired ULXD4 receiver without adding latency or complexity to the workflow. Battery operation extends to 11 hours on two AA cells, with the optional SB900A lithium-ion rechargeable adding precision runtime metering for engineers who need to know — in hours and minutes — when a pack needs swapping. The TA4F input connects the full range of professional Shure lavalier and headset microphones, and integration with Wireless Workbench gives system engineers remote monitoring and coordination capability across multi-channel deployments. This is a transmitter you build a permanent installation around.

Key Features

This transmitter requires a Ulxd4 receiver to complete the system. Note: when purchasing separate wireless components, please match their frequency bands to ensure proper system operation

The ULXD1 is a wireless body pack transmitter compatible with ULX-D Digital Wireless Systems.

With a rugged yet lightweight aluminum case, The Ulxd1 delivers uncompromising audio quality and RF performance, AES 256-bit encryption for secure transmission, and advanced recharge ability options for professional sound Reinforcement applications

Proprietary Shure gain ranging optimizes the system’s dynamic range for any input source, eliminating the need for transmitter gain adjustments

Includes two AA batteries which provide up to 11 hours of battery life. Optional Shure SB900A lithium-ion rechargeable battery provides over 11 hours of battery life, precision metering in hours and minutes, and zero memory effect.

Specifications

Type
Wireless Bodypack Transmitter
Frequency Band
J50A (470–534 MHz)
Compatible System
Shure ULX-D Digital Wireless
Required Receiver
Shure ULXD4 / ULXD4D / ULXD4Q (J50A band)
Encryption
AES-256
Input Connector
TA4F (Mini-XLR 4-pin)
Battery
2x AA (included) — up to 11 hours
Optional Battery
Shure SB900A lithium-ion rechargeable (sold separately)
Body Material
Aluminum

Pros & Cons

👍 Pros

  • Automatic gain ranging eliminates transmitter gain misconfiguration — in multi-mic conference installs or quick presenter changeovers, this removes a failure point that plagues less sophisticated systems.
  • AES-256 encryption secures the RF transmission against interception, making this appropriate for corporate, legal, and government production environments where signal privacy is a requirement.
  • The aluminum housing is rugged enough to survive the physical demands of daily presenter handling — drops, clips, pocket sweat — without compromising RF performance.
  • Up to 11 hours on AA batteries means you can run all-day conferences or multi-set festivals without mid-show battery changes, using readily available cells anywhere in the world.
  • Integration with the broader ULX-D ecosystem enables channel coordination and remote monitoring via Shure Wireless Workbench, giving system engineers precise per-transmitter status visibility.

👎 Cons

  • This transmitter is a component, not a complete system — it requires a separately purchased ULXD4 receiver in the matching J50A band, adding significant cost to a complete working setup.
  • The TA4F connector, while standard in professional applications, limits microphone compatibility — consumer or budget lav mics often use different connector types and won't connect directly without adapters.
  • No rechargeable battery is included; the SB900A lithium-ion battery, which adds precision runtime metering and removes alkaline dependency, is a separately purchased accessory.
  • At the frequency coordination level required by ULX-D multi-channel installs, setup complexity increases — this is professional infrastructure gear, not a plug-and-play solution for occasional users.
  • The J50A band frequency range (470–534 MHz) may have limited availability in some geographic regions due to local RF spectrum regulations — verify local compliance before deployment.

Frequently Asked Questions

No manual gain setting is needed. Shure's proprietary gain ranging circuitry automatically optimizes the dynamic range for whatever source you connect — whether that's a lavalier mic at speech levels or a high-output instrument. This removes a common point of human error during setup and prevents the distortion you'd otherwise get from mismatched transmitter gain.
The ULXD1 uses a TA4F (mini-XLR 4-pin) connector — the standard for professional bodypack transmitters. It's compatible with the full range of Shure lavalier and headset microphones designed for the ULX-D ecosystem, as well as many third-party lav mics using the same connector.
With two included AA batteries, you're looking at up to 11 hours of continuous operation — enough to cover a full conference day or multi-set live performance without a swap. The optional SB900A lithium-ion rechargeable provides equivalent runtime with precision hour-and-minute metering, which lets you make informed decisions about battery swaps during production.
It means your RF signal cannot be intercepted and decoded by unauthorized receivers. For corporate presentations, legal proceedings, or any environment where confidential speech is being amplified, AES-256 ensures the audio transmission is cryptographically secure end-to-end between this transmitter and the ULXD4 receiver.
This transmitter requires the Shure ULXD4 (or ULXD4D/ULXD4Q) receiver to operate. Critically, the frequency band of the transmitter and receiver must match — this unit is J50A band (470–534 MHz), so your receiver must also be J50A. Mismatched bands will not interoperate.

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