Shure QLXD4E H51
Product information "Shure QLXD4E H51"
The QLXD4 is the receiver of the digital QLX-D wireless system, combining professional functionality with easy installation and operation. Automatic Channel Scan quickly finds the cleanest frequencies, while Networked Channel Scan distributes those open frequencies among multiple receivers over Ethernet with simple one-button synchronisation. Predictive Diversity ensures a stable RF link. Spectrum use is extremely efficient: up to 22 transmitters can be used simultaneously per 8 MHz channel. Secure AES 256-bit encryption guarantees highly secure, private wireless transmissions. The QLX-D receiver can be remotely controlled from PC and Mac computers via Shure Wireless Workbench® software or the ShurePlus™ Channels iOS app. For easy installation in professional environments the receiver is built in a 9.5"-rack format with removable half-wave antennas.
- Automatic Channel Scan for quickly finding clean frequencies; Networked Channel Scan for cross-device coordination of available frequencies among multiple receivers over Ethernet at the push of a button
- Predictive Diversity for a stable RF connection
- extremely efficient use of the RF spectrum – up to 22 transmitters per 8 MHz channel
- secure AES-256 encryption of wireless links
- remote control via PC and Mac computers using Shure Wireless Workbench® software
- ShurePlus™ Channels mobile app for remote control via iOS devices
- 9.5"-rack format with removable half-wave antennas
- adjustable preamp gain up to 60 dB
- adjustable bandwidth up to 72 MHz (region-dependent)
- more than 60 preset channels per frequency band (region-dependent)
- IR-Sync to transfer selected frequencies to transmitters
- high-contrast LCD menu and controls with lock function, audio and RF LED indicators with peak level display
- XLR output, switchable between mic and line level, and 6.3 mm instrument output
- durable construction in brushed aluminium
- Dimensions: 197 x 41 x 151 mm
- Material: Aluminium
- Rack mounting: 9,5" + Rack Angle
- Radio Frequency: 534 - 598 MHz
- Receiver technology: Diversity
- Subcategory: Receiver
- Transmission Technology: digital
- Weight: 777 g
- suitable for: Shure QLXD Serie
Shure is a renowned company in the world of audio technology, known for its high-quality microphones, wireless audio systems, in-ear monitors and headphones. In 2025 Shure celebrates its 100th anniversary – a century of innovations that have shaped the sound of music, broadcast and live performances. Founded in 1925 by Sidney N. Shure in Chicago, Illinois, the company grew from a one-man operation selling radio kits and components into a global market leader. Today Shure delights both professionals in the music and audio industries and audio enthusiasts worldwide with its legendary quality and relentless drive for innovation.
The company places great emphasis on research and development to create innovative products that meet the constantly changing demands of the audio industry. With a strong commitment to quality and customer satisfaction, Shure has earned the trust of musicians, sound engineers and audio lovers around the world.
Shure products are characterised by their exceptional sound quality, robustness and reliability, making them the first choice for live performances, studio recordings and home use. From legendary microphones like the SM58 and SM7B, which are considered industry standards and have achieved cult status — the SM58 even has an annual holiday, the SM58-Day — to modern solutions for conference rooms and educational institutions, Shure offers a broad range of audio solutions.
