FEATURES
- Automatic Channel Scan quickly finds clear frequencies; Networked Channel Scan then shares open frequencies between multiple receivers over Ethernet, with one touch syncing
- Digital Predictive Switching Diversity ensures a stable RF connection
- Highly efficient RF spectrum usage – up to 22 transmitters per 8 MHz channel
- Secure AES 256 bit encryption of all wireless transmissions
- Shure Wireless Workbench® software allows remote control from PC or Mac
- ShurePlus™ Channels mobile app allows remote control from iOS devices
- Half rack format with detachable ½ wave antennas
- Up to 60 dB of adjustable audio gain
- Up to 72 MHz tuning bandwidth (region dependent)
- More than 60 preset compatible channels per frequency band (region dependent)
- High contrast LCD menu and controls with lockout feature, plus Audio and RF LED meters with peak indicator
- Mic / line switchable XLR output, and 6.3 mm instrument output
- Durable aluminium construction with brushed finish
- Applications: Speech, Vocals, Presentation, Conference, Theater, E-Guitar/Bass, Other Instruments
- Environment: Conference Room, Corporate Presentation, Auditorium, Lecture Hall, Live Performance, Place of worship, Rehearsal Space, Theater Stage
SYSTEM
- RF Carrier Frequency Range: 470–937.5 MHz, varies by region (See Frequency Range and Output Power table)
- Working Range: 100 m ( 328 ft)
- Note: Actual range depends on RF signal absorption, reflection and interference.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 – 20 kHz (±1 dB) |
|
QLXD2
|
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.
|
QLXD
|
SB900B |
alkaline |
| 1/10 mW |
1/10 mW |
|
470 to 865
|
>8:55 hours |
8 hours |
|
902 to 928
|
>7:58 hours |
>6 hours |
|
174 to 216
|
>8:55 hours |
>8:30 hours |
|
1240 to 1800
|
>7:30 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 × 197 × 151 mm, H × W × D
- Weight: 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 Ω
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 −)
- 1/4" (6.35 mm): 100 Ω (50 Ω Unbalanced)
- XLR: 100 Ω
- 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 100 m
- 1 - PS24 Power supply
- 2 - 1/2 Wave Antenna
- 2 - BNC Cable
- 2 - BNC Bulkhead Adapter
- 1 - Rackmount Kit
- 1 - Rackmount Bracket-Long
- 1 - Rackmount Bracket-Short
- 1 - Link plate
- 4 - Receiver Rubber Feet
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