Shure GLXD4R+ Z3 | Dual-Band Rackmount Wireless Receiver | 2.4 & 5.8GHz with Smart Channel Switching

Rackmount Digital Wireless Receiver

The Shure GLXD4R+ Z3 is a next-generation, single-channel wireless receiver housed in a durable metal half-rack chassis with removable antennas and rackmount hardware included. Built for demanding environments like houses of worship, event venues, and conference rooms, it delivers reliable digital audio over both 2.4 and 5.8GHz bands using intelligent frequency scanning and true digital diversity. With simple operation, robust RF performance, and built-in battery charging, it's ideal for installations requiring long-term reliability and clean sound.

Shure GLXD4R+ Z3 Competitive Differences

• Dual-band operation (2.4 & 5.8 GHz) for expanded channel availability and cleaner signal
• Front-panel charging port for SB904 transmitter battery (sold separately)

Shure GLXD4R+ Z3 Description

The Shure GLXD4R+ Z3 builds on the success of the original GLX-D platform with expanded wireless capability, reduced interference, and easier integration into multi-system setups. Unlike older systems limited to 2.4GHz, this receiver automatically scans both 2.4 and 5.8GHz bands to find the cleanest channel for your wireless microphone, significantly reducing dropout risk in high-traffic environments. Its true diversity architecture uses two antennas and independent receiver modules to continuously monitor signal quality, while simultaneous transmission on backup frequencies ensures seamless switching in case of interference. This results in a smooth, uninterrupted audio signal ideal for presentations, performances, and meetings. With a wide 20 Hz to 20 kHz frequency response and 120 dB dynamic range, the GLXD4R+ preserves the natural tone of your microphone and source audio. The backlit LCD provides detailed status information including real-time transmitter battery life, gain settings, and RF strength. Input gain is wirelessly adjustable from the front panel, streamlining system setup. Rear-panel outputs include a balanced XLR (switchable mic/line) and a balanced 1/4" output, giving you versatile routing options. You can also update the receiver firmware via its USB-C port. For expanded systems, detachable antennas allow for front mounting or integration with advanced accessories like frequency managers and directional antennas.

Model Features

• Dual-band 2.4/5.8 GHz wireless operation for improved reliability
• True digital diversity with simultaneous backup frequency transmission
• Front-panel battery charging for SB904 (not included)
• Wireless gain control from receiver interface
• OLED display with battery life, RF strength, and audio levels
• Detachable antennas with front-mounting option

Model Specifications

• Wireless Technology: Digital 2.4/5.8 GHz
• Diversity: Yes, True Diversity
• Max Operating Range: 100 ft (30.5 m)
• RF Frequency Band: Z3 (2400–2483.5 MHz / 5725–5850 MHz)
• Max Simultaneous Channels: 8 (up to 11 with Frequency Manager)
• Latency: 4.53 to 8 ms
• Gain Range: -18 to +42 dB (1 dB steps)
• Frequency Response: 20 Hz to 20 kHz
• Audio Outputs: 1x XLR (Mic/Line), 1x 1/4" TRS Balanced
• USB: 1x USB-C (Firmware Updates)
• Power Requirements: 14.5–17 VDC, 600 mA
• Dimensions: 7.8 x 6.4 x 1.7 in (197 x 163 x 42 mm)
• Weight: 30.5 oz (866 g)
• Package Weight: 6.175 lb
• Box Dimensions: 17.8 x 14.4 x 4.4 in

What's In The Box

• GLXD4R+ Z3 receiver
• 2x detachable antennas (rear-mount)
• Rackmount hardware kit
• Power adapter
• Front-mount antenna cables and hardware
• User documentation