Shure ULXD4D Dual-Channel Digital Wireless Receiver (H51: 534 to 598 MHz)

Shure ULXD4D Dual-Channel Digital Wireless Receiver (H51: 534 to 598 MHz)

The Shure ULXD4D houses 2 independent digital receivers in a rugged, single-rack unit with an internal power supply. Two Ethernet ports support Dante digital audio, while RF cascade ports allow for antenna signal distribution to another receiver unit. Audio summing enables the receiver to function as a 2-channel mixer.

The ULX-D Series simplifies the set up and management of large numbers of wireless systems. It is ideal for professional sound reinforcement applications in large live venues and houses of worship as well as A/V installations in conference, educational, and corporate facilities. Compatible with a wide selection of Shure transmitters and mic capsules, it delivers pristine 24-bit/48 kHz digital audio, capturing every detail with clarity, accurate low end, and crisp transient response.

Predictive Switching Diversity to protect the transmission from interference, delivering rock-solid RF signal stability without audio artifacts. In Standard mode you can run up to 17 channels per 6 MHz TV channel, at a range up to 330'. Alternatively, the High-Density mode lets you run up to 47 channels per 6 MHz TV channel, at a maximum range of 98'. The system offers AES-256 encryption for security.

Each receiver module has its own audio and RF meters, 60 dB of gain control, and XLR output. A large LCD screen and intuitive controls let you quickly make adjustments, even in low-light situations. Additional features include automatic frequency scanning, IR sync, gain optimization to match any input source, and internal limiting to prevent clipping.

The Ethernet ports also allow multiple receivers to be easily networked together for simplified frequency coordination and deployment via Shure's Wireless Workbench software. In addition, the Channels Mobile App enables you to control the system remotely from an iOS device.

Shure Professional-Grade Digital Wireless Audio Quality

• 24-bit/48 kHz digital audio delivers clear and accurate sound reproduction
• Extended 20 Hz to 20 kHz frequency range with flat response
• >120 dB wide dynamic range for excellent signal-to-noise performance
• Up to 60 dB of independently adjustable gain for each channel
• Works with a wide selection of Shure mics and transmitter types including the ULXD1 bodypack and ULXD2 handheld transmitters that provide complete mobility for presenters/performers, and the ULXD6 boundary and ULXD8 gooseneck base transmitters to accommodate meeting rooms with flexible seating layouts

Up to 60 Channels with Rock-Solid Transmission

• 2-channel receiver operates in the H50: 534 to 598 MHz UHF band
• 64 MHz tuning range lets you run up to 60 channels at the same location in Standard mode or 90 channels in High-Density mode
• Digital Predictive Switching Diversity uses a microprocessor to switch antennas before dropouts occur
• Comes with two remoteable 1/2 wave dipole antennas
• Bodypack frequency diversity ensures uninterrupted audio for mission-critical applications using two discrete bodypacks on a single audio source
• 256-bit AES encryption offers unbreachable privacy—uses unique, randomized encryption key generated every time encryption is enabled
• Interference detection and alerts provide instant confirmation on both the receiver LCD and WWB software when interference is present
• Adding UA874 active antennas or PA805 passive antennas increases the range of your system and offers increased protection against interference
• The UA844+SWB antenna distribution system (available separately) lets you stretch the power of your antenna pairs, giving you more on-air channels in less setup time

Shure ULXD4D Specs

Number of RF Channel Frequencies 2560

Diversity Antenna Diversity

RF Frequency Band H50: 534 to 598 MHz

RF Bandwidth 64 MHz

Frequency Step Size 25 kHz

RF Channel Scanning Auto-Scan

Max Operating Range 328.1' / 100 m

Max Transmitters per Band 60

Timecode Support No

Mobile App Compatible No

OS Compatibility macOS 10.14 to 11 or Later Windows 10 or Later

Latency < 2.9 ms

Modulation Proprietary

Receiver

Receiver Type Rackmount

Mounting Options Rackmount (with Included Hardware)

Rackmount Size 1 RU (Full Rack)

Antenna 2x 1/2 Wave External, BNC (Rear-Mount)

Antenna Bias Voltage 12 to 13 VDC, 150 mA (per Antenna)

Number of Audio Channels 2

Audio I/O 2x 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) XLR Outputs: -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 2x RJ45 (1 Gb/s)

Network Protocols DHCP, Dante, Manual IP

Standalone Audio Interface Capable No

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 1x Backlit LCD (Battery Status, Channel, Group, Menu Navigation) 2x 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 7.4 lb / 3.4 kg