Shure SLXD4Q+ QUAD Wireless Rack Receiver 1U K55 606-694 MHz CH38

Description

The Shure SLXD4Q+ Quad Wireless Rack Receiver delivers professional digital wireless performance in a compact 1U rackmount design. Ideal for live entertainment, theatres, lecture halls and conference facilities, this four-channel receiver combines transparent 24-bit digital audio with exceptional RF reliability. Featuring a 118 dB dynamic range and wide tuning capabilities, it provides clear, consistent sound across demanding professional applications.

Designed to maximise efficiency, the SLXD4Q+ accommodates four wireless channels in a single rack space, reducing equipment requirements without compromising performance. Its audio summing functionality allows four channels to be routed across four, three, two or one mixer outputs, while RF cascading enables two SLXD4Q+ receivers to be linked for an eight-channel system. Digital predictive switching diversity further enhances reception stability.

The SLXD4Q+ offers straightforward setup through automatic frequency scanning and infrared transmitter synchronisation. With four balanced XLR outputs, four 6.35 mm audio outputs, Ethernet connectivity and switchable antenna bias voltage, it provides flexible integration into professional sound systems. Its rugged galvanised steel construction ensures durability for both touring and permanent installations.

Features

• Four-channel digital wireless receiver in a compact 1U rackmount design

• K55 frequency band (606–694 MHz)

• Transparent 24-bit digital audio with 118 dB dynamic range

• Wide 138 MHz tuning capability across supported frequency variants

• Up to 32 available channels per frequency band, region dependent

• Audio summing functionality for 4, 3, 2 or 1 mixer outputs

• RF cascading for creating an eight-channel system using two SLXD4Q+ receivers

• Digital predictive switching diversity for reliable RF reception

• Automatic frequency scanning and IR transmitter synchronisation

• Four balanced XLR and four 6.35 mm audio outputs

• Dual Ethernet connections for network integration

• Switchable antenna bias voltage

• Adjustable audio output gain

• Rugged galvanised steel housing

• Suitable for professional live sound and fixed installations

Specifications

Manufacturer : Shure

Model : SLXD4Q+

Product Type : Quad-Channel Digital Wireless Receiver

Frequency Band : K55 (606–694 MHz)

Receiver Channels : 4

Rack Format : 1U

Digital Audio Resolution : 24-bit

Audio Frequency Response : 20 Hz – 20 kHz (+1, −2 dB)

Audio Dynamic Range : 118 dB

Audio Latency : 3.2 ms

Total Harmonic Distortion : Less than 0.02%

RF Working Range : Up to 100 m

RF Sensitivity : −97 dBm at 10⁻⁵ BER

Image Rejection : Greater than 85 dB typical

Spurious Rejection : Greater than 75 dB typical

RF Tuning Step Size : 25 kHz (region dependent)

Available Channels : Up to 32 per frequency band (region dependent)

Diversity Technology : Digital Predictive Switching Diversity

Audio Summing : 4, 3, 2 or 1 Output Configuration

RF Cascade : Supports Connection of One Additional Compatible Receiver

RF Input Connectors : BNC

RF Input Impedance : 50 Ohms

Antenna Bias Voltage : 15 V DC, 150 mA Maximum Per Antenna

Audio Outputs : 4 x Balanced XLR, 4 x 6.35 mm

Audio Gain Adjustment : −18 to +42 dB in 1 dB Steps

XLR Output Impedance (Line) : 500 Ohms

XLR Output Impedance (Mic) : 150 Ohms

6.35 mm Output Impedance : 1.1 kOhms Balanced

Maximum XLR Output Level (Line) : +18 dBV

Maximum XLR Output Level (Mic) : −12 dBV

Maximum 6.35 mm Output Level : +18 dBV Balanced / +12 dBV Unbalanced

Mic/Line Switch : 30 dB Pad

Phantom Power Protection : Yes

Network Addressing : DHCP or Manual IP Address

Maximum Network Cable Length : 100 m

Operating Temperature : −18°C to +50°C

Storage Temperature : −29°C to +74°C

Dimensions : 42 x 393 x 152 mm (H x W x D)

Weight : 1.75 kg (Without Antennas)

Housing : Galvanised Steel

Power Requirements : 15 V DC, 0.9 A