Housed in a rugged, single-rack unit, the Shure AD4Q-DC Axient Digital Wireless Receiver 470-636MHzis a 4-channel wireless receiver with a built-in DC power module, complete with cable and mounting accessories. The unit accepts DC power for use in broadcast production trucks, as well as AC for power redundancy.

Part of the Axient Digital system, the AD4Q-DC delivers mission-critical signal stability and clear, transparent sound for professional productions that demand flawless execution. Every feature has been stress-tested to enable seamless, uninterrupted audio in high-profile applications such as televised live performances, award shows and corporate events, the Broadway stage, secure government installations, and state-of-the-art meeting and training facilities.

The AD4Q-DC operates in a single 166-MHz ultrawide bandwidth that encompasses the entire usable UHF range from 470 to 636 MHz. Quadversity mode allows placement of two pairs of antennas in different zones or doubling antennas in one zone. The Dante Cue and Dante Browse features enable high-fidelity headphone monitoring from any connected Dante-enabled device.

Other highlights include a low 2ms latency, XLR/AES3 + AES67/Dante outputs, 256-bit encryption, and HD mode for up to 47 active transmitters per 6 MHz TV channel. Axient Digital supports over 120 simultaneous channels and is compatible with AD1, ADX1, ADX1M, AD2, ADX2, and ADX2FD transmitters.

For Major Events, High-End Installations    DC Power Module    4 x Digital Audio Channels, 1 Rackspace    166 MHz Ultrawide Tuning Range    Expandable to 120+ Channels    True Digital Diversity Reception    4 x Ethernet/Dante Ports    XLR and AES3 Outputs    Quadversity Mode, RF Cascade Ports    Secure AES-256 Encryption

Interference Detection and Avoidance

The Axient ecosystem uses multiple components that work together for advanced interference detection and avoidance. The AD4Q receiver can detect RF interference when it occurs and get a new, clean frequency from the AXT600 Spectrum Manager (available separately). Using the AD610 ShowLink Access Point (available separately), the AD4Q receiver and ADX transmitter execute a synchronized frequency change in a matter of milliseconds.

Remote Control for ADX transmitters

When it is difficult or impossible to access the transmitter, you can make instantaneous remote adjustments to your ADX transmitter settings (RF output, gain, mute, and more) via ShowLink.

Frequency Diversity Mode

In Frequency Diversity mode, two AD/ADX transmitters or a single ADX2FD transmitter can transmit two identical signals on two discreet frequencies. If the active signal degrades, the other takes over automatically, providing additional protection against dropouts. This mode uses two channels on the receiver.

Ultra-Compact ADX1M Micro Bodypack Transmitter

The ADX1M features a lightweight and ultracompact design with an internal antenna. Comfortable to wear, it is exceptionally easy to place and conceal on talent.

Transparent Sound: A flat, 20Hz to 20kHz frequency response provides accurate audio reproduction.

Wide Dynamic Range: A dynamic range of >120 dB yields impressive signal-to-noise performance and accurate transient response.

Ultralow Latency: An exceptionally low 2ms latency from microphone transducer to analog output delivers a seamless, cohesive sound.

Digital Outputs: Dante and AES67 digital audio both transmit via a configurable 4-port Ethernet switch for combined control/audio or separate streams with redundancy. An AES3 output provides an additional option for pristine digital audio.

Encryption: An Advanced Encryption Standard (AES) 256-bit encrypted signal ensures that every transmission is secure and unbreachable, ideal for government facilities and other sensitive installations.

Ultrawide Tuning Bandwidth: A tuning bandwidth of 166 MHz supplies broad spectrum coverage with 6640 selectable frequencies to choose from, for fewer dropouts.

True Digital Diversity Reception: Mounting a superior defense against multipath, fading events, and other anomalies that cause RF noise, Axient Digital combines two discrete RF signals per receiver channel using a quality-based maximal-ratio-combining algorithm.

Quadversity Mode: Quadversity configures the receiver to accept four antenna inputs to maximize RF coverage and minimize the risk of dropouts and signal loss caused by interference. It also allows users to place two pairs of antennas to cover different zones. The AD4Q provides two channels of audio when configured in this mode.

High Density Mode: High Density transmission mode enables up to 47 active transmitters in one 6-MHz TV channel—all while maintaining exceptional audio quality. It is ideal for applications where many channels are needed in a confined area, transmission distances are short, and the number of available frequencies is limited.

Dante Cue and Dante Browse: With the push of a button, Dante Cue allows you to monitor any Axient Digital channel on the network, through a headphone output located on the front panel. Dante Browse offers precise monitoring of any Dante-enabled device on the network.

Networked Charging for Transmitters: Intelligent, high-performance rechargeable transmitter batteries and chargers let you know how much running time is left during the show, in hours and minutes. You can also monitor the charging status of your spares.

Wireless Workbench and ShurePlus Channels App: Ethernet networking enables real-time, precision monitoring and control of your system, as well as automatic frequency coordination across multiple receivers, using Wireless Workbench, and Axient Spectrum Manager software. The AD4Q is also compatible with external controllers such as AMX and Creston.

Control and monitor capabilities can be extended to an iOS mobile device via the ShurePlus Channels app, allowing you to make adjustments anywhere in the venue.

AD Transmitters

AD transmitters put Axient Digital professional-quality wireless digital audio within reach. Options include the AD1 bodypack transmitter and the AD2 handheld transmitter.

ADX Transmitters with ShowLink

ADX transmitters expand the AD’s feature set to take full advantage of the Axient Digital system’s capabilities. ShowLink technology allows automatic interference avoidance via frequency hopping. Engineers can also adjust parameters in real time from the booth. Options include the ADX1M Micro and ADX1 bodypack transmitters, as well as the ADX2 and ADX2FD Frequency Diversity handheld transmitters.

Adding UA874 active antennas or PA805 passive antennas increases the range of your system and offers increased protection against interference.

The AXT630 antenna distribution system (available separately) lets you stretch the power of your antenna pairs, giving you more on-air channels in less set-up time.

Audio

• Up to 60 dB of independently adjustable gain for each channel
• Automatic limiter function protects against signal clipping, allowing for higher gain settings and preventing unexpected signal peaks

I/O

• Four transformer-balanced XLR outputs (outputs 3 & 4 switchable to AES3 digital)
• Four transformer-balanced 1/4'' outputs
• Two Dante-enabled Ethernet ports and two network-control Ethernet ports with PoE
• Split-Redundant Mode: Two ports of Ethernet, two ports of Dante
• Switched Mode: Four ports of Ethernet, four ports of Dante
• Word Clock input and thru ports
• Locking AC power connection
• AC power cascade to additional components

RF

• All antenna ports provide a DC bias power for active antennas
• Antenna cascade ports for one additional receiver—ports can be switched to Quadversity inputs
• Channel-Quality meter displays signal-to-noise ratio of RF signal on easily readable LCD
• Preprogrammed group and channel maps with options to create custom groups
• Search for open frequencies via receiver using group and channel scan
• Register up to eight transmitters to one receiver channel

Related Questions and Answers

Q: 1. For pairing, does the transmitter need to touch or be close to the receiver? Can they be paired without the app?

A: The Sennheiser EW-DP EK Camera-Mount Digital Wireless Receiver and compatible transmitter need to be in line of sight of each other, but can be up to 100 feet away when pairing by pressing the sync buttons on the receiver and transmitter. The EW-D Smart Assist app is not required for pairing.

Q: 2. Can you only run (1) microphone through this item?

A: Yes only one wireless ULX-D Wireless System transmitter may be paired with this receiver.

Q: 3. Is there a reason to select one of the frequencies over the others for use in the United States?

A: Yes. If you will be using the system in a specific city, you will want to choose a frequency band that avoids the strong TV and radio broadcast signal in that area in order to have more options for clear frequencies to use for wireless transmission with the microphone. Please contact us by phone, through live chat on the web, or by email and we can help you to select the best option for your location.

Q: 4. Can you cascade two receivers in order for them to share 2 antennas?

A: To share antennas with two or more Sennheiser EW-D EM Digital Wireless Receivers, Sennheiser recommends using the EW-D ASA 4-Way Active Antenna Splitter with DC Distribution for EW-D Wireless Systems (B&H # SEEWDASAQRS). The EW-D ASA provides an RF active feed for up to four receivers.

Q: 5. What mics are compatible with SLXD4D?

A: The Shure SLXD4D Dual-Channel Digital Wireless Receiver (G58: 470 to 514 MHz) can be used with wireless bodypack and handheld transmitters. The Shure SLXD1 Digital Wireless Bodypack Transmitter - G58: 470 to 514 MHz (B&H # SHSLXD1G58) can be used with the compatible lavalier, headset, or earset style microphone of your choice and the Shure SLXD2 Wireless Handheld Transmitters are available with a variety of mic capsules so you can select the transmitter with the mic capsule that you prefer, such as the Shure SLXD2/SM58 Digital Wireless Handheld Microphone Transmitter with SM58 Capsule - G58: 470 to 514 MHz (B&H # SHSLXD2SMG). Just make sure that the receiver and transmitters you select are all for the same frequency band. This particular receiver operates on the G58 frequency band of 470 to 514 MHz.

Q: 6. What exactly is the difference between this kit BH #SHSLXD4DH55K (B&H Kit) and BH #SHSLXD14DH55 ?

A: The Shure SLXD14D Dual-Channel Digital Wireless Bodypack System Kit with No Mics (H55: 514 to 558 MHz) (B&H # SHSLXD4DH55K) is effectively the same as the Shure SLXD14D Dual-Channel Digital Wireless Bodypack System with No Mics (H55: 514 to 558 MHz) (B&H # SHSLXD14DH55), however the B&H kit is a bundle of 2x Individual SLXD1 bodypacks and 1x SLXD14D receiver, while the non-B&H Kit version is a single item. As the B&H Kit is multiple items, it allows us to get a better bundle price for the same equipment.

Q: 7. Can you tell me what the FCC ID is

A: The FCC ID code for the Shure SLXD4 Digital Wireless Receiver (G58: 470 to 514 MHz), BH # SHSLXD4G58, is DD4SLXD2G58.

Q: 8. how many mics can each channel have? or is it 1 mic per channel?

A: The Shure ULXD4D Dual-Channel Digital Wireless Receiver (G50: 470 to 534 MHz) has two separate channels which can each be used with a separate transmitter/microphone. Two transmitters/microphones can be used simultaneously with the ULXD4D Receiver.

Q: 9. what is the different between ad4q to ad4d?

A: The Shure AD4Q is a quad-channel receiver, and the AD4D is a dual-channel receiver.

Q: 10. Does this come with a hard case? Does it come with a case? Is there a hard case for this and ideally a pair of transmitters?

A: No, a hard case is not included with the Shure ADX5D Axient Digital Dual-Channel Slot-Mount Wireless Receiver (470 to 636 MHz), As options for a hard case, the Pelican 1150 Case without Foam - Black (B&H # PE1150B), the Pelican 1150 Case with Foam - Black (B&H # PE1150FB), the Pelican 1120 Case without Foam - Black (B&H # PE1120B), or the Pelican 1120 Case with Foam - Black (B&H # PE1120FB) could work. For compatible transmitters, the Shure AD and ADX Series Transmitters can be used. A few of the options for handheld transmitters include the Shure ADX2/SM58 Digital Handheld Wireless Microphone Transmitter with SM58 Capsule - G57: 470 to 616 MHz (B&H # SHADX2SM58G5) and the Shure ADX2/B58 Digital Handheld Wireless Microphone Transmitter with Beta 58A Capsule - G57: 470 to 616 MHz (B&H # SHADX2B5857). The Shure ADX1 Digital Wireless Bodypack Transmitter with TA4M - G57: 470 to 608 MHz (B&H # SHADX1G57), the Shure ADX1 Digital Wireless Bodypack Transmitter with LEMO3 - G57: 470 to 608 MHz (B&H # SHADX1LM3G57), and the Shure ADX1M Digital Micro Bodypack Wireless Transmitter - G57: 470 to 608 MHz (B&H # SHADX1MG57) are options for compatible bodypack transmitters.