คำอธิบาย...
Shure QLXD14A-V52 Bodypack Wireless System (VHF: 174-210 MHz)
ชุดเครื่องรับ-เครื่องส่งไร้สายแบบพกพา SHURE QLXD14 Bodypack 64 MHz tuning bandwidth, ในชุดประกอบด้วย เครื่องรับ QLXD4 receiver, เครื่องส่งแบบเหน็บเอ็ว body pack QLXD1 transmitter, และสาย WA305 instrument cable, (ไม่รวมไมโครโฟน)
Shure QLXD14 Bodypack Wireless System is a good choice to get the job done. It can be used in various venues for audio applications such as live stage, theater, rehearsals, recording studios, and more. It features 24-bit digital audio, network control, and AES-256 encryption. The QLXD 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 bodypack also feature a backlit LCD display to allow for navigation through the menus and controls. With clearly defined performance the QLXD wireless system delivers good clean audio and provides professional features for demanding live sound events and installations.
The QLXD14 wireless system includes a QLXD4 receiver, QLXD1 transmitter, a WA305 instrument cable, 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. The QLXD14 system offers good wireless functionality for demanding live sound events and installations.
Features:
- 300 feet (100 meter) 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 |
V52: 174-210 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 |
Greater than 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) |
Audio Dynamic Range |
System Gain @ +10: > 120 dB, A-weighted, typical |
Total Harmonic Distortion (THD) |
−12 dBFS Input, System Gain @ +10: Less than 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 (H x W x D) |
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): −120 dBV, A-weighted, typical (System Gain Setting ≥ +20) |
RF Output |
Connector: SMA
Antenna Type: 1/4 wave
Impedance: 50 ohms
Occupied Bandwidth: Less than 200 kHz
Modulation Type: Shure proprietary digital
Power: 1 or 10 mW
Note: Varies by region |
Dimensions (H x W x D) |
3.38 x 2.57 x 0.92″ (86 x 65 x 23 mm) |
Weight |
4.9 oz (138 g), without batteries |
Package Weight |
8.8 lb |
Box Dimensions (LxWxH) |
18.0 x 17.0 x 4.0″ |