The Shure SLXD4D is a dual-channel digital wireless receiver compatible with all SLX-D transmitters and housed in a rugged single-rack chassis with two removable antennas. It is ideally suited for rackmounting in portable flight cases and long-term installations for small- to medium-sized venues, event spaces, conference rooms, houses of worship, and education facilities.
The system delivers crystal-clear, 24-bit digital audio with a wide dynamic range for natural vocal reproduction to presenters, vocalists, clergy, lecturers, and performers. It operates in the UHF band and uses Digital Predictive Switching Diversity technology to protect the transmission from interference and deliver a solid, reliable RF signal without dropouts.
The all-metal rackmount SLXD4D receiver offers intuitive LCD interfaces with meters for RF and audio output. It also offers 60 dB of gain control, and both mic/line XLR and 1/4" instrument outputs for each channel. Additional features include automatic frequency scanning and IR sync to easily link the transmitter and receiver to the same frequency.
You can run up to 32 mics simultaneously in the same space. Setting up multiple systems is made quick and easy via the Ethernet port which allows you to execute a coordinated frequency scan for all the connected receivers from a single location.
Transparent Digital Sound, Dependable Performance, and More Mics
The SLX-D delivers 24-bit digital audio with a fast transient response and over 120 dB of dynamic range—resulting in clear, accurate sound.
The system operates in the G58: 470 to 514 MHz MHz UHF band with a 44 MHz tuning range and 1760 selectable frequencies, far away from potential Wi-Fi interference in the 2.4 GHz band.
Digital Predictive Switching Diversity uses a microprocessor to switch between the two antennas for the cleanest signal—before dropouts occur.
Low latency makes the system ideal for applications that require live sound reinforcement.
Spectrum-efficient digital transmission technology allows for up to 32 mics to be used at once.
Up to 10 compatible systems per 6 MHz TV band and 12 systems per 8 MHz band are supported.
Ethernet networking saves you time with coordinated group scanning between multiple receivers from a single location; TCPI command streams from third-party companies such as AMX and Crestron are also supported.
Ready to Rackmount, Easy to Use
Housed in a tough, single-rack metal chassis with detachable antennas, the SLXD4D receiver is a great fit for A/V installations or as part of a portable rackmount rig—ready to travel to a meeting or event.
The SLX-D is engineered to provide outstanding sound for small- to medium-sized spaces and facilities—without costly, complicated features required primarily for large venues.
Intuitive front-panel controls and a high-contrast LCD screen with audio and RF meters makes set up a snap.
The auto-scan function automatically seeks out the cleanest available frequency for you. The receiver and transmitter then easily link to the same frequency via infrared.
The receiver offers up to 60 dB of adjustable gain, and the display shows you where the ideal level should be.
Enhance the Reliability of Your Receiver
Adding UA874 active antennas or PA805SWB 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.
For Small to Medium Venues & Events
Dual-Channel, Single-Rack Space
1760 Auto-Scan Frequencies
Two Removable Antennas
Digital Predictive Diversity Reception
Ethernet for Group Scans & Local Control
Adjustable Output Level
Rugged Metal Construction
Expandable to 32 Mic Channels/330' Range
Wireless Transmission Digital UHF
Number of RF Channels 1760
Diversity True Digital Diversity
RF Frequency Band G58:
470 to 514 MHz
RF Bandwidth 44 MHz
Frequency Step Size 25 kHz
RF Channel Scanning Auto-Scan
Max Operating Range 328' / 100 m
Max Systems per Setup 32
Latency 3.2 ms
Form Factor Rackmount
Mounting Options Rackmount (with Included Hardware)
Rackmount Size 1 RU (Full Rack)
Antenna 2 x 1/4 Wave External, BNC (Rear-Mount)
Number of Audio Channels 2
Audio I/O 2 x XLR 3-Pin Male Balanced Mic/Line Output
2 x 1/4" TRS Female Balanced Output (Lockable)
Gain Range 0 to +21 dB (3 dB Steps)
Pad 30 dB
Audio Output Level -18 to +42 dB (Balanced, Unbalanced)
Phantom Power Protection On 1/4", XLR Outputs
Frequency Response 20 Hz to 20 kHz +1/-2 dB (Dependent on Mic)
Network I/O 1 x RJ45 (10/100 Mb/s)
Network Protocols DHCP, Manual IP
Impedance 1/4" Outputs:
1.3 Kilohms (Balanced)
670 Ohms (Unbalanced)
400 Ohms (Balanced)
150 Ohms (Balanced)
Approximate RF Sensitivity -97 dBm
Adjacent Channel Isolation >70 dB
Spurious Rejection: >75 dB
Power Requirements AC/DC Power Adapter
AC/DC Power Adapter 15 VDC at 600 mA, Center-Positive (Included)
AC Input Power 100 to 240 VAC, 50 / 60 Hz
Display & Indicators LCD (AF Level, Channel, Frequency, Group, RF Level, Transmitter Battery Status)
Operating Temperature 0 to 122°F / -17 to 50°C
Storage Temperature -20 to 165°F / -28 to 73°C
Dimensions 15.5 x 1.7 x 6" / 393 x 42 x 152 mm
Weight 3.1 lb / 1.4 kg (without Antenna)