Shure ULXD4Q Quad Digital Wireless Receiver

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Shure ULXD Digital Wireless Represents the Standard in Reliable and Cost Effective Handheld and Bodypack Systems

The Shure ULXD4Q Dual Channel Digital Wireless Receiver offers four channels of uncompromising audio quality, RF signal stability and efficiency, and advanced setup features in a single rack unit. Rugged, yet lightweight and compact, the all-metal chassis houses four independent receivers, each with its own audio and RF meters, gain control, and receiver 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 easily can 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 to be transmitted and received over a single Ethernet cable. When more compatible frequencies over shorter distances, High Density mode can be enabled to dramatically increase the number of available open frequencies. With the suite of features and benefits ULX-D® Digital Wireless Systems offer, the ULXD4Q is truly generations ahead of any other dual digital receiver in its class, and brings a new level of performance to professional sound reinforcement.

Shure ULXD4Q Wireless Reciever Features:

  • Four 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 both audio channels to each XLR receiver output
  • Dante™ digital networked audio over Ethernet
  • Up to 60 dB independently adjustable gain for each channel
  • Ethernet networking for streamlined frequency coordination and deployment across multiple receivers
  • Wireless Workbench® 6 (WWB6) software integration for advanced coordination, monitoring, and control
  • Interference detection and alerts provided on both the receiver and WWB6
  • AMX/Crestron® control
  • AXT600 Axient® Spectrum Manager compatible
  • Yamaha® device ID allows simplified channel patching on CL consoles
  • Intuitive front panel LCD menu and controls with lockout feature
  • Audio and RF LED meters with peak indicator
  • XLR connectors with switchable mic/line output level
  • Remoteable 1/2 wave antennas
  • Upgraded LCD with adjustable contrast and brightness

Uncompromising Digital Wireless Audio

-24-bit/48 kHz digital audio that delivers incredibly clear and accurate reproduction of the source material -20 Hz–20 kHz frequency range with flat response -Greater than 120 dB dynamic range through the analog outputs -130 dB dynamic range (typical) using Dante and AES67 digital networked audio -60 dB of adjustable system gain easily accessible from the receiver front panel -No transmitter gain adjustments needed: optimized for any input source -Wide selection of trusted Shure Microphones

Extremely Efficient and Reliable RF Performance

-Up to 64 MHz overall tuning range (region dependent) -Up to 17 active transmitters in one 6 MHz TV channel (23 on an 8 MHz TV channel) -High Density mode enables up to 47 active transmitters in one 6 MHz TV channel (63 in one 8 MHz TV channel), with no -audio quality degradation -Rock-solid signal stability with no audio artifacts over the entire 100 meter line-of-sight range using standard supplied -½ wave antennas -Selectable 1, 10, and 20 mW transmitter RF output power (comparable to 5 times the analog RF output power equivalent) -Optimized scanning automatically finds, prioritizes, and selects the cleanest frequencies available

Scalable, Intelligent Hardware

-Single (half-rack), Dual, and Quad (full-rack) receiver form factors for any size installation -AES 256-bit encryption equipped for secure wireless transmission -Ethernet networking for streamlined setup across multiple receivers -Wireless Workbench® 6 software compatible for advanced frequency coordination, monitoring, and control -Comprehensive 3rd party control and monitoring across subnets -AXT600 Axient® Spectrum Manager compatibility -Rugged metal housing on both transmitters and receiver


Multiple spectrum options, including VHF, UHF, and 900 ISM. Multiple transmitter types including handheld, bodypack, boundary, and gooseneck options Choice of receiver type (single, dual, or quad) Monitoring and control functionality from Wireless Workbench® 6, SystemOn, and ShurePlus™ Channels apps. Dual and quad receivers include DANTE™ digital audio networking Dante Domain Manager (DDM) compatible for managing enterprise-wide Dante audio network deployments


True to the source The 24-bit digital audio and the wide frequency response capture the sound as clearly and accurately as it was produced. Scalable control The network is always yours to command with proven Shure tools like Wireless Workbench®, SystemOn, Axient Spectrum Manager, as well as AMX & Crestron integration and Dante audio. Secure sound Confidentiality is ensured via AES-256 encryption that generates a randomized key for each use. Networked, intelligent charging ULX-D transmitters use either AA batteries or our intelligent rechargeable solutions for up to 9 hours of use. Battery life and charge status can be monitored remotely from Shure software. So power is always on your side.


ULX-D pushes wireless audio further. More streamlined. Higher density. Up to 47 systems running simultaneously within 6 MHz. That’s one reason it’s become the standard bearer for installed digital wireless. And you can hear it in crystal clear performances around the world.
  • Wireless Technology: Digital UHF
  • Number of RF Channel Frequencies:1760
  • Diversity: Antenna Diversity
  • RF Bandwidth: 44 MHz
  • Frequency Step Size : 25 kHz
  • Max Operating Range: 328.1' / 100 m
  • Max Transmitters per Band: 60
  • Latency: < 2.9 ms
  • Modulation: Proprietary
  • Receiver Type: Rackmount
  • Mounting Options: Rackmount (with Included Hardware)
  • Rackmount Size: 1 RU (Full Rack)
  • Antenna: 2 x 1/2 Wave External, BNC (Rear-Mount)
  • Antenna Bias Voltage: 12 to 13 VDC, 150 mA (per Antenna)
  • Number of Audio Channels: 4
  • Audio I/O: 4 x XLR 3-Pin Male Balanced Output
  • Gain Range: -18 to +42 dB (1 dB Steps)
  • Pad : 30 dB
  • Audio Output Level:
    • XLR Outputs:
      • +18 dBV (Line Level, Balanced)
      • -12 dBV (Mic Level)
    • Phantom Power Protection: On XLR Outputs
    • Frequency Response: 30 Hz to 20 kHz ±1 dB (Dependent on Mic)
    • Network I/O: 2 x RJ45 (1 Gb/s)
    • Network Protocols: DHCP, Dante, Manual IP
    • Impedance:
      • XLR Output:
        • 100 Ohms (Balanced)
      • Approximate RF Sensitivity: -98 dBm
      • Adjacent Channel Isolation: >70 dB
      • Spurious Rejection: >80 dB
      • Power Requirements: AC Input
      • AC Input Power: 100 to 240 VAC, 50 / 60 Hz at 0.32 A
      • Display & Indicators :
        • 1 x Backlit LCD (Battery Status, Channel, Group, Menu Navigation)
        • 2 x Multi-Segment LED (AF Level, Output Level, Peak)
      • Housing: Steel
      • Operating Temperature: 0 to 122°F / -17 to 50°C
      • Storage Temperature: -20 to 165°F / -28 to 73°C
      • Dimensions: 19 x 1.7 x 10.8" / 482 x 44 x 274 mm
      • Weight: 7.6 lb / 3.4 kg

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