Shure QLXD4 K51

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Shure QLXD4 K51

Shure

QLXD4 K51

4.6 Expert Rating

Product Info

Article Number: 400059
Brand: Shure
Model: QLXD4 K51
Category: Receivers
Price: $962.50

* Prices may vary. Check retailer for current pricing and availability.

This QLXD4 K51 is a workhorse wireless receiver built for serious performers and production teams. The digital clarity and secure transmission are top-notch, making it ideal for live sound, broadcast, and theatrical applications where reliability and security are paramount. It's a premium-priced solution, but the performance justifies the investment.

Product Description

  • Shure QLXD4 K51
  • Digital UHF Receiver
  • Frequency band: K51 (606 - 670 MHz)
  • 24 bit / 48 kHz audio signal
  • AES-256 encryption for tap-proof transmission
  • Up to 72 MHz switching bandwidth
  • 22 compatible channels in an 8 MHz TV band
  • 9.5" housing
  • Detachable BNC antennas
  • Ethernet port for system monitoring and configuration
  • Frequency transmission via infrared interface
  • XLR / jack output
  • Includes PS23 power supply
  • rack mount
  • antennas and antenna front mounting set for antenna
PROS
  • • Rock-solid AES-256 encryption ensures truly secure transmission.
  • • The 72 MHz switching bandwidth provides excellent channel flexibility.
  • • Shure's renowned audio quality delivers clear, detailed sound reproduction.
  • • Integrated Ethernet port simplifies system management and remote monitoring.
CONS
  • • The 9.5 in housing makes it less portable than some competing receivers.
  • • The K51 band's availability can vary significantly by region.
  • • While reliable, the infrared sync can be finicky at longer distances.

Product Video

Key Features

Frequency Band K51 (606 - 670 MHz)
Channels 22 compatible channels
Diversity Not specified in description, assumed to be true diversity due to Shure's typical implementation
Outputs XLR / jack output
Antenna Type Detachable BNC
Rack Mountable Yes

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Frequently Asked Questions

AES-256 is considered military-grade encryption, significantly stronger than many consumer-grade wireless systems, making it suitable for sensitive performances or environments.
You can realistically expect around 100-200 feet of clear line-of-sight range, but obstacles and interference can dramatically reduce this – proper antenna placement is critical.
While it has an Ethernet port for monitoring, it doesn’t natively support Dante; integration would require additional hardware or workarounds.

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