Shure ULXD4Q Quad-Channel Digital Wireless Receiver

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.

• 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 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

RF Carrier Frequency Range

• 470–932 MHz, varies by region (See Frequency Range and Output Power table)

Working Range

• 100 m ( 330 ft)
• Note: Actual range depends on RF signal absorption, reflection and interference.

RF Tuning Step Size

• 25 kHz, varies by region

Image Rejection

• >70 dB, typical

RF Sensitivity

• −98 dBm at 10-5 BER

Latency

• <2.9 ms

Audio Dynamic Range

• A-weighted, typical, System Gain @ +10
• XLR Analog Output: >120 dB
• Dante Digital Output: 130 dB

Total Harmonic Distortion

• −12 dBFS input, System Gain @ +10
• <0.1%

System Audio Polarity

• Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 6.35 mm (1/4-inch) output.

Operating Temperature Range

• -18°C (0°F) to 50°C (122°F)
• Note: Battery characteristics may limit this range.

Storage Temperature Range

• -29°C (-20°F) to 74°C (165°F)
• Note: Battery characteristics may limit this range.

Weight

• 3.45 kg (7.6 lbs), without antennas

Power Requirement

• 100 to 240 V AC, 50-60 Hz, 0.32 A max.

Dimensions

• 44 x 482 x 274 mm (H x W x D)

Housing

• steel; Extruded Aluminum

AUDIO OUTPUT

Gain Adjustment Range

• −18 to +42 dB in 1 dB steps (plus Mute setting)

Configuration

• XLR: balanced (1=ground, 2=audio +, 3=audio −)

Impedance

• 100 Ω

Full Scale Output

• LINE setting: +18  dBV
• MIC setting: −12  dBV

Mic/Line Switch

• 30 dB pad

Phantom Power Protection

• Yes

CASCADE OUTPUT

Connector Type

• BNC
• Note: For connection of one additional receiver in the same band

Configuration

• Unbalanced, passive

Impedance

• 50 Ω

Insertion Loss

• 0 dB

NETWORKING

Network Interface

• Dual Port Ethernet 10/100 Mbps, 1Gbps, Dante Digital Audio

Network Addressing Capability

• DHCP or Manual IP address

Maximum Cable Length

• 100 m (328 ft)

RF INPUT

Spurious Rejection

• >80 dB, typical

Connector Type

• BNC

Impedance

• 50 Ω

Bias Voltage

• 12 to 13 V DC, 150 mA maximum, per antenna
• switchable on-off