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Shure QLXD24/B87A Handheld Wireless Microphone System

The Shure QLXD24/B87A Handheld Wireless Microphone System is part of Shure's QLX-D line of digital wireless systems. Shure QLX-D Digital Wireless delivers defined, streamlined performance with transparent 24-bit digital audio. Combining professional features with simplified setup and operation, QLX-D offers outstanding wireless functionality for demanding live sound events and installations. QLX-D delivers outstanding wireless functionality ideal for mid-size events and installations in businesses, hotels, and government offices with conferencing spaces; schools, houses of worship, and live performance spaces.

Shure QLXD24/B87A Includes:

  • QLXD2 Handheld Transmitter with BETA87A Cartridge
  • QLXD4 Receiver
  • Battery Contact Cover
  • Two (2) Half-Wave Antennas
  • Two (2) BNC Cables
  • Two (2) BNC Bulkhead Adapters
  • Zipper Bag
  • Rackmount Kit
  • User Guide

Shure QLXD24/B87A Features:

  • Transparent 24-bit digital audio captures every performance detail
  • Extended 20 Hz - 20 kHz frequency range (microphone dependent)
  • Over 120dB of dynamic range eliminates transmitter gain adjustment
  • Wide 64 MHz tuning bandwidth (region dependent)
  • Up to 17 compatible systems per 6 MHz TV channel
  • Compatible with Shure Wireless Workbench 6 Control Software
  • Remote control from an iOS device via ShurePlus Channels Mobile App
  • AES-256 encryption for secure wireless transmission
  • Professional-grade all metal construction

Shure QLXD24/B87A Specifications:

  • Overall System:
    • RF Carrier Range:  470–937.5MHz, varies by region
    • Working Range:  100 m (328 ft)
      • Note: 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, 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 (0°F) to 50°C (122°F)
      • Note: Battery characteristics may limit this range.
    • Storage Temperature Range:  -29°C (-20°F) to 74°C (165°F)
      • Note: Battery characteristics may limit this range.
  • QLXD4 Receiver:
    • Dimensions (HxWxD):  1.63" × 7.75" × 5.94" (41mm × 197mm × 151mm)
    • Weight:  1.71 lbs (777 g, 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 Ohms
    • 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 Ohms (50 Ohms Unbalanced)
        • XLR:  100 Ohms
      • 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 Ethernet Cable Length:  328 ft (100 m)
  • QLXD2 Wireless Handheld Transmitter:
    • BETA87A Cartridge Polar Pattern:  Supercardioid
    • Frequency Response:  50 Hz - 20 kHz
    • Mic Offset Range:  0 to 21 dB (in 3 dB steps)
    • Battery Type:  Shure SB900 Rechargeable Li-Ion or AA batteries 1.5 V
    • Battery Runtime @ 10 mW:  Shure SB900: up to 10 hours; Alkaline: up to 9 hours
    • Dimensions (LxDia.):  10.1" x 2.0" (256 mm x 51 mm)
    • Weight:  12.2 oz. (347 g), without batteries
    • Housing:  Machined aluminum
    • Audio Input:
      • Configuration:  Unbalanced
      • Maximum Input Level (1 kHz at 1% THD):  145 dB SPL (SM58), typical
        • Note: Dependent on microphone type
    • RF Output:
      • Antenna Type:  Integrated Single Band Helical
      • Occupied Bandwidth:  < 200 kHz
      • Modulation Type:  Shure proprietary digital
      • Power:  1 mW or 10 mW