Shure QLXD4 Product Specifications:
General
RF Carrier Frequency Range: 470-937.5 MHz, varies by region
Working Range: 100 m (328 ft)
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: 20 - 20 kHz (±1 dB)
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)
Storage Temperature Range: -29°C (-20°F) to 74°C (165°F)
Battery Life:| 470 to 865 | >9:30 hours | 8 hours |
| 902 to 928 | >8:30 hours | >6 hours |
| 174 to 216 | >9:30 hours | >8:30 hours |
| 1240 to 1800 | >8:00 hours | >6 hours |
The values in this table are typical of fresh, high quality batteries. Battery runtime varies depending on the manufacturer and age of the battery.
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
Mic/Line Switch: 30 dB pad
Network Interface: Single Port Ethernet 10/100 Mbps
Network Addressing Capability: DHCP or Manual IP address
Maximum Cable Length: 100 m (328 ft)
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 Ω Unbalanced)
XLR: 100 Ω
Full Scale Output
1/4" (6.35 mm): +12 dBV
XLR: LINE setting= +18 dBV, MIC setting= -12 dBV
Phantom Power Protection
1/4" (6.35 mm): Yes
XLR: Yes
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