Shure QLXD4 Digital Wireless Receiver (H50: 534 to 598 MHz)

Shure QLXD4 Digital Wireless Receiver (H50: 534 to 598 MHz) The Shure QLXD4 is a digital UHF wireless receiver engineered for tabletop or rackmount use in professional audio environments. Operating within the H50 frequency band of 534 to 598 MHz, this single-channel receiver provides true digital diversity reception and AES 256 encryption for secure signal transmission. Designed as a half-rack metal unit, the QLXD4 delivers low-latency audio with a maximum operating range of 330 feet and supports up to 60 transmitters per band.

Digital UHF Reception with True Diversity

The QLXD4 employs digital UHF wireless technology with true diversity reception to maintain a stable audio link. The receiver scans across 2560 RF channel frequencies within the H50 band, providing substantial flexibility for coordinating multiple wireless systems in congested RF environments. With support for up to 60 transmitters per band, the system is well-suited for complex multi-channel installations where frequency coordination is critical.

AES 256 Encryption and Low-Latency Operation

Secure transmission is handled through AES 256 encryption, which protects audio signals from unauthorized interception. The receiver maintains a latency of less than 2.9 ms, ensuring that transmitted audio remains tightly synchronized with the source. This combination of robust encryption and minimal delay makes the QLXD4 appropriate for applications where signal security and timing accuracy are priorities.

Flexible Mounting and Antenna Configuration

The receiver is housed in a rugged metal chassis and can be positioned on a tabletop or mounted in a standard 19-inch rack using the included hardware, occupying a single rack unit of space. Two removable 1/2 wave external antennas attach to the rear of the unit, allowing for replacement or repositioning