Shure AD4QNP=-A

Overview

The Shure AD4QNP=-A is a four-channel wireless receiver designed for the Axient Digital system, operating within a wide UHF range of 470 to 636 MHz. This single-rack-unit device delivers reliable digital diversity reception and low latency down to 2 milliseconds, making it suitable for professional audio environments such as theaters, broadcast trucks, and touring setups. Its robust signal processing and flexible networking options ensure consistent audio quality even in complex RF conditions.

Key features

• True digital diversity reception on each of the four channels ensures stable and clear audio by constantly selecting the strongest RF signal path.
• Wide 166 MHz tuning range simplifies frequency coordination across different regions and crowded RF environments.
• Quadversity mode allows the use of four antennas to extend coverage and overcome physical obstacles in challenging venues.
• High Density mode supports up to 47 transmitters within a single 6 MHz TV channel, ideal for metropolitan areas with limited spectrum availability.
• 256-bit AES encryption secures wireless transmissions, protecting sensitive content from interception.
• Multiple output options including balanced analog XLR, AES3, Dante, and AES67 digital audio provide versatile integration with professional audio systems.
• Built-in four-port Ethernet switch offers network redundancy, remote control, and Dante Cue monitoring for front-panel headphone checks of any channel on the network.
• Selectable latency floor as low as 2 ms maintains real-time audio synchronization for in-ear monitoring, live mixing, and broadcast applications.
• Compatible with all AD and ADX series handheld and bodypack transmitters, offering flexibility across various wireless microphone setups.

Key specs

• Tuning range: 470 to 636 MHz (166 MHz span)
• Channels: Four independent audio channels
• Latency: Selectable down to 2 milliseconds
• Encryption: 256-bit AES
• Audio outputs: Balanced XLR analog, AES3 digital, Dante, AES67
• Network: Built-in four-port Ethernet switch with redundancy and remote control
• Form factor: Single rack unit (1 RU)

Connectivity and compatibility

The receiver integrates seamlessly with Shure’s AD and ADX series transmitters, supporting a wide range of handheld and bodypack wireless microphones. Its multiple output formats allow connection to analog mixing consoles as well as digital audio networks using Dante and AES67 protocols. The built-in Ethernet switch simplifies network setup by combining audio, control, and redundancy functions into a single interface, reducing cabling complexity and improving reliability.

Performance and reliability

Designed to maintain consistent audio quality in demanding environments, the AD4QNP=-A uses true digital diversity to minimize dropouts caused by reflections or crowd movement. The Quadversity antenna system and High Density mode further enhance RF performance, making it a strong choice for large-scale events and dense RF environments. The low-latency option ensures audio stays in sync for performers and broadcasters who require precise timing.

Ideal uses and environments

This receiver is well suited to professional audio engineers managing complex wireless setups in theaters, live concerts, broadcast trucks, and conference venues. Its wide tuning range and advanced RF features make it a reliable solution for events that demand multiple wireless channels without interference. The security features and network capabilities also make it a good match for corporate events and broadcast studios where content protection and uptime are critical.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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