Shure QLXD4 Digital Wireless Receiver — H50 (534-598 MHz)
QLXD4 Overview
The Shure QLXD4 is a half-rack digital wireless receiver operating in the H50 frequency band (534-598 MHz), engineered for professional wireless deployments in live sound, houses of worship, broadcast, and installed venue environments. It combines Automatic Channel Scan with Networked Channel Scan to rapidly identify open frequencies across complex RF environments, minimizing setup time and reducing the risk of interference. AES 256 encryption provides enterprise-grade signal security for sensitive or high-profile productions. The QLXD4 is well suited for audio engineers, system integrators, and AV professionals who require reliable, scalable wireless infrastructure.
The one-touch sync function allows the receiver to deploy found frequencies directly to paired transmitters, streamlining channel coordination and reducing the complexity of multi-channel wireless setups.
Key Features
- H50 Frequency Band — operates across 534-598 MHz for flexible frequency coordination in supported regions
- Automatic Channel Scan — quickly identifies available frequencies to minimize setup time in congested RF environments
- Networked Channel Scan — coordinates frequency scanning across multiple receivers on a shared network for large-scale deployments
- Digital Predictive Switching — maintains signal integrity by anticipating and compensating for RF dropouts before they affect audio
- AES 256 Encryption — provides high-level signal security for broadcast, corporate, and sensitive live event applications
- One-Touch Sync — deploys open frequencies from receiver to transmitter in a single step, accelerating deployment workflows
- Half-Rack Form Factor — space-efficient chassis suitable for rack-mounted installations and touring racks
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