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Shure ULXD4Q Quad-Channel Digital Wireless Receiver

Abel Code: SH-ULXD4Q-H50
Mfr. Code: ULXD4Q-H50
Estimated to Ship – Contact Sales for Availability
This Shure Quad-Channel Digital Wireless Receiver offers four channels of uncompromising audio quality, RF signal stability, and advanced setup features in a space-efficient single rack unit.
Key Highlights
  • 4x receivers in 1RU compact body
  • Gain controls, LED meters, & XLR out
  • Digital predictive switching diversity


The Shure ULXD4Q Quad Channel Digital Wireless Receiver offers four channels of uncompromising audio quality, RF signal stability, and advanced setup features in a space-efficient single rack unit. Rugged yet lightweight and compact, the 1RU all-metal chassis houses four independent receivers, each with its own audio and RF meters, gain control, and XLR outputs that can be either direct or summed for flexible signal routing.

At only 7.6 pounds, the ULXD4Q offers space savings in the rack and cost savings when shipping. With RF cascade and two Ethernet ports, units can easily share RF signal and be networked together for simplified frequency coordination and deployment. For networked audio applications, Dante™ digital networking allows multiple channels of audio over a single Ethernet cable.

With the suite of features and benefits ULX-D® Digital Wireless Systems offer, the ULXD4Q is truly generations ahead of any other available receiver in its class, and brings a new level of performance and scale to professional sound reinforcement.

NOTE: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.


  • 4x receivers in a rugged 1RU metal chassis with internal power supply
  • Individual gain controls, LED meters, and XLR outputs for each channel
  • Up to 64 MHz tuning range (region dependent)
  • Digital predictive switching diversity
  • High Density mode optimizes ULX-D systems to simultaneously operate significantly more channels in applications up to 30 meters
  • RF cascade ports allow distribution of RF signal to another unit
  • Optimized scanning automatically finds, prioritizes, and deploys the cleanest frequencies to transmitters over IR sync
  • Bodypack frequency diversity ensures uninterrupted audio for mission-critical applications
  • AES 256-bit encryption-enabled for secure transmission
  • Audio summing routes two or more audio channels to combinations of receiver outputs. Use each channel's gain adjustment to reach the desired mix.
  • Dante™ digital networked audio over Ethernet
  • Ethernet networking for streamlined frequency coordination and deployment across multiple receivers
  • Interference detection and alerts provided on both the receiver and WWB6
  • Up to 60 dB independently adjustable gain for each channel
  • Wireless Workbench® 6 (WWB6) software integration for advanced coordination, monitoring, and control
  • AMX/Crestron® control
  • Compatible with the AXT600 Axient® Spectrum Manager
  • Yamaha® device ID allows simplified channel patching on CL consoles
  • Intuitive front panel LCD menu and controls with lockout feature
  • Upgraded LCD with adjustable contrast and brightness
  • Audio and RF LED meters with peak indicator
  • Switchable mic/line output level
  • Remoteable ½ wave antennas

NOTE: "YAMAHA" is a registered trademark of Yamaha Corporation.


What's in the Box

  • Limited 2-Year Warranty
  • 2 x 1/2 Wave Antennas
  • Power Supply
  • Rack Hardware
  • Shure ULXD4Q Quad-Channel Digital Wireless Receiver


Key Highlights

  • 4x receivers in 1RU compact body
  • Gain controls, LED meters, & XLR out
  • Digital predictive switching diversity
  • Up to 64 MHz tuning range
  • AES 256-bit encryption-enabled
  • Distribute RF signal to another unit
  • Switchable mic/line output level


100 ohms


Output Connector/Port:
4 x XLR 3-pin - Balanced XLR Audio Output (one per channel)
2 x Ethernet - Primary & Secondary. Connect to an Ethernet network to enable remote device control via WWB6 software. Also carries Dante digital audio and control signals for audio distribution, monitoring, and recording - see Dante Network topic.
Input Connector/Port:
1 x 1/4" Phone Jack - RF Cascade (Passes the RF signal from Antenna A and Antenna B to one additional receiver)
1 x AC In - Power input


60 dB of adjustable system gain per channel


Line Input Types:
Line-Level - Setting: 18 dBV
Mic - Setting: -12 dBV
Phantom Power:
Yes - Protection
Dynamic Range:
Greater than 120 / 130 dB - (analog / digital)


RF Notes:
Bodypack Frequency Diversity - safeguards against loss of audio signal caused by RF interference or by power loss in a transmitter.
RF cascade ports
RF cascade ports
Wireless Frequency:
20 Hz – 20 kHz - frequency range with flat response
Audio Channels:
4-Channel - Audio Summing — Combining of selected audio channels to be routed to all selected outputs and allows the receiver to function as a 2 or 4 channel mixer.
Internal Antenna - Remoteable 1/2 wave antennas
Transmitter Options:
Wireless Receiver - Up to 17 active transmitters in one 6 MHz TV channel


18 in
3.5 in
27.3 in
14.2 lb
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