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
