The Shure QLXD24/Beta 87A is a digital wireless handheld microphone system that's 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 delivers exceptional wireless functionality, ideal for mid-size events, businesses, hotels, government offices, schools, houses of worship, and live performance spaces. The QLXD2/Beta 87A is a premium quality supercardioid hand-held electret condenser vocal microphone with exceptionally smooth frequency response and high sound pressure level capability.

Shure QLXD24/B87A-G50 Includes:

• QLXD2 Handheld Transmitter with BETA87A Cartridge
• QLXD4 Receiver
• 2 AA batteries
• 2 1/2 wave antennas
• 2 2 BNC cables
• 1 zipper bag
• 2 BNC bulkhead Adapters
• 1 rackmount kit
• 1 user guide
• 1 power supply

Shure QLXD24/B87A-G50 Features:

• Includes QLXD4 digital wireless receiver and QLXD2 handheld mic with Beta 87A cartridge
• Transparent 24-bit digital audio captures every performance detail
• Over 120dB of dynamic range eliminates transmitter gain adjustment
• Wide 64MHz tuning bandwidth (region-dependent)
• Up to 17 compatible systems per 6MHz TV channel

Shure QLXD24/B87A-G50 Specifications:

• 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") output.
• Operating Temperature Range: -18°C (0°F) to 50°C (122°F) (Battery characteristics may limit this range)
• Storage Temperature Range: -29°C (-20°F) to 74°C (165°F) (Battery characteristics may limit this range)
• 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)
• 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 on both 1/4" (6.35 mm) and XLR