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For capturing audio, the QLXD14/83 Lavalier Wireless Microphone System by Shure is a good choice to get the job done. It can be used for mid-size events and installations in businesses, hotels, government offices, schools, houses of worship, live performance spaces, and more. It features 24-bit digital audio, network control, and AES-256 encryption.
The QLX-D wireless system is built with switching diversity and automatic channel scan, and has IR sync capabilities to make finding an open frequency quick. Featuring a frequency range of 20 Hz to 20 kHz, it offers more than 60 available channels per frequency band. The receiver and beltpack also feature a backlit LCD display to allow for navigation though the menus and controls. With clearly defined performance the QLX-D wireless delivers clean audio and provides professional features for demanding live sound events and installations.
The QLXD14/83 system includes a QLXD4 receiver, one QLXD1 transmitter with a WL183 omnidirectional microphone, a PS23 power supply, two 1/2 wave antennas, two 2' BNC cables with bulkhead adapters, a zipper bag, two AA Alkaline batteries, and rackmount hardware.
Features
- 300 feet (100 meters) line-of-sight operating range
- 120 dB dynamic range
- Digital predictive switching diversity receiver to capture the clearest sound
- 64 MHz tuning bandwidth
- Up to 17 compatible systems per 6 MHz TV band, and 22 systems per 8 MHz band
- Easy pairing of transmitters and receivers over IR scan and sync
- Automatic channel scan
- Selectable display mode showing group/channel, frequency, or battery runtime
- Rugged metal construction
Specifications
| RF Carrier Frequency Range | X52: 902 to 928 MHz |
| Working Range | 330' / 100 m 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 to 20 kHz (±1 dB) |
| Audio Dynamic Range | System Gain @ +10: >120 dB, A-Weighted, Typical |
| Total Harmonic Distortion (THD) | -12 dBFS Input, System Gain @ +10: <0.1% |
| Polarity | System Audio: Positive Pressure on Microphone Diaphragm Produces Positive Voltage on Pin 2 (with Respect to Pin 3 of XLR Output) and the Tip of the 1/4" / 6.35 mm Output |
| Operating Temperature Range | 0 to 122°F / -18 to 50°C Note: Battery Characteristics May Limit This Range |
| Storage Temperature Range | -20 to 165°F ? -29 to 74°C Note: Battery Characteristics May Limit This Range |
| Housing | Steel |
| Power Requirement | 12 VDC @ 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' / 100 m |
| Dimensions | 1.63 x 7.75 x 5.94" / 41 x 197 x 151 mm |
| Weight | 1.71 lb / 777 g |
| Housing | Cast Aluminum |
| 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 | At 10 mW: Shure SB900: Up to 10 Hours Alkaline: Up to 9 Hours |
| Audio Input | Connector: 4-Pin Male Mini Connector (TA4M) Configuration: Unbalanced Impedance: 1 MOhm Maximum Input Level 1 kHz at 1% THD: 8.5 dBV (7.5 Vpp) Preamplifier Equivalent Input Noise (EIN) System Gain Setting ≥ +20: -120 dBV, A-Weighted, Typical |
| RF Output | Connector: SMA Antenna Type: 1/4 Wave Impedance: 50 Ω Occupied Bandwidth: <200 kHz Modulation Type: Shure Proprietary Digital Power: 1 mW or 10 mW Varies by Region |
| Dimensions | 3.38 x 2.57 x 0.92" / 86 x 65 x 23 mm |
| Weight | 4.9 oz / 138 g, Without Batteries |
| Model | WL183 with TA4F Connector |