Shure QLXD24/B58 Digital Wireless Handheld Microphone System

Featuring a Beta 58A® handheld wireless microphone transmitter, the QLXD24/B58 Digital Wireless Handheld Microphone System from Shure combines professional features with simplified setup and operation. It's ideal for mid-size events and installations in businesses, hotels, and government offices with conferencing spaces, schools, houses of worship, and live performance spaces.

The Beta 58A Vocal Dynamic Microphone

The Beta 58A has been put through its paces for decades, pushing voice to the forefront on the biggest stages in the world, making it a top-selling, single element, dynamic vocal mic. This mic’s supercardioid pattern helps to push your voice to the front of the mix. The brightened midrange and bass roll-off give lead and background vocals a mighty presence in the mix. And the supercardioid pattern works harder to isolate your sound from every other source in the air. The hardened steel mesh grille stands up to some of the roughest sweat drips, mic drops and van rides, without so much as a dent to show for it.

The QLXD4 Digital Wireless Receiver

Get the perfect balance of professional features and intuitive efficiency with the QLXD4 digital wireless receiver. This receiver has transparent 24-bit digital audio quality and incredibly efficient RF spectrum usage. Streamline your workflow: Find open frequencies fast with automatic scanning, then deploy them to transmitters using one-touch IR sync.

Experience expanded capabilities with ethernet networking. This allows you to use networked channel scanning across multiple receivers, remotely control settings from your computer via Wireless Workbench® software integration, and remote monitoring from iOS devices is also available (via the ShurePlus™ Channels Mobile App).

More about QLX-D Digital Wireless Systems

QLX-D® Digital Wireless systems deliver more wireless capacity to mid-size venues without compromising signal. Streamline setup across multiple receivers. The 24-bit digital audio and the wide frequency response capture the sound as clearly and accurately as it was produced. Wireless Workbench® software provides real-time access, monitoring and control throughout the performance, allowing you to manage the system from your iOS device for maximum convenience. The rechargeable lithium-ion battery option extends performance on stage.

Shure QLXD24/B58 Features

• 24-Bit digital audio quality
• Incredibly efficient RF spectrum usage
• Quick syncing with a wireless receiver over IR at the push of a button
• Clear, uninterrupted signal over the entire operating range
• AES 256-bit encryption for secure transmission
• Over 120 dB of dynamic range: no transmitter gain adjustment needed
• 1, 10 mW selectable RF output power
• Optional Shure SB900A lithium ion rechargeable battery reports remaining runtime in hours and minutes
• External charging contacts for docked charging
• Backlit LCD with easy to navigate menu and controls
• Selectable display mode showing group/channel, frequency, or battery runtime
• Rugged metal construction
• Frequency and power lockout

• QLXD4 single-channel receiver1
• QLXD2/B58 handheld transmitter1
• AA batteries2
• 1/2 wave antennas2
• 2 BNC cables2
• Zipper bag1
• BNC bulkhead adapters2
• Rackmount kit1
• Power supply1

• RF Carrier Range 174 - 216 MHz, 470 - 865 MHz, 1492 - 1525 MHz, 1785 - 1805 MHz, varies by region
• Working Range 100 m (Actual range depends on RF signal absorption, reflection and interference)
• RF Tuning Step Size 25 kHz, varies by region
• Image Rejection >70 dB, typical
• RF Sensitivity −97 dBm at 10−5 BER
• Latency <2.9 ms
• Audio Frequency Response
  • QLXD1: 20 Hz – 20 kHz (±1 dB)
  • QLXD2: Note: Dependent on microphone type
• Audio Dynamic Range System (Gain @ +10) >120 dB, A-weighted, typical
• Total Harmonic Distortion (−12 dBFS input, System Gain @ +10) < 0.1%
• System Audio Polarity Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 6.35 mm (1/4-inch) output.
• Operating Temperature Range -18 °C to 50 °C (Battery characteristics may limit this range)
• Storage Temperature Range -29 °C to 74 °C (Battery characteristics may limit this range)
• B58
  • Cartridge Type: dynamic (moving coil)
  • Frequency Response: 50Hz to 16,000Hz
  • Polar Pattern: supercardioid
  • Output Impedance: 150 Ω
  • Sensitivity (at 1kHz, open circuit voltage): −51 dBV/Pa (2.8 mV)
  • Connector: 3-pin professional audio XLR male
  • Weight: 0.62 pounds
• QLXD4
  • Dimensions: 41 mm x 197 mm x 151 mm (1.63 in. x 7.75 in. x 5.94 in.), H x W x D
  • Weight: 777 g (1.71 lbs), without antennas
  • Housing: steel
  • Power Requirements: 12 V DC @ 0.4 A, supplied by external power supply (tip positive)
  • RF Input
  • Spurious Rejection: >80 dB, typical
  • Connector Type: BNC
  • Impedance: 50 Ω
  • Audio Output
    • Gain Adjustment Range: -18 to +42 dB (in 1 dB steps)
  • Configuration
    • 1/4" (6.35 mm): Impedance balanced (Tip=audio, Ring=no audio, Sleeve=ground)
    • XLR: balanced (1=ground, 2=audio +, 3=audio −)
  • Impedance
    • 1/4" (6.35 mm): 100 Ω (50 ΩUnbalanced)
    • XLR: 100 Ω
  • Full Scale Output
    • 1/4" (6.35 mm): +12 dBV
    • XLR: LINE setting= +18 dBV, MIC setting= -12 dBV
  • Mic/Line Switch: 30 dB pad
  • Phantom Power Protection
    • 1/4" (6.35 mm): Yes
    • XLR: Yes
  • Networking
    • Network Interface: Single Port Ethernet 10/100 Mbps
    • Network Addressing Capability: DHCP or Manual IP address
    • Maximum Cable Length: 100 m (328 ft)