Product Description

Shure QLXD24/B87A QLX-D Series Single-Channel Digital Wireless Microphone System

The Shure QLXD24/Beta 87A is a digital wireless handheld microphone system that 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. 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.

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

Included

• 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

Specs

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") 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)

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

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 (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