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For capturing audio, the QLXD2/SM58 Handheld Wireless Microphone Transmitter by Shure is a good choice to get the job done. Featuring transparent 24-bit digital audio quality, it is used for wireless vocals in presentation spaces, music venues, houses of worship, DJ setups, and more. It features a 20Hz to 20kHz frequency response and has more than 60 available channels per frequency band. Powered by 2 AA batteries, the QLXD2 quickly syncs with a wireless receiver over IR at the push of a button and maintains clear, uninterrupted signal over its entire 100 m (328 ft.) range. All-metal construction ensures durability, and a wide selection of compatible microphone choices is ideal for your presentation.
For the Shure QLX-D wireless system
- Features interchangeable Shure microphone capsules
- AES 256-bit encryption for secure transmission
- Up to 9 hours continuous use with 2 x AA alkaline batteries
- Optional Shure SB900 lithium ion rechargeable battery (sold separately) provides up to 10 hours of continuous use and reports remaining runtime in hours and minutes
- Backlit LCD with easy to navigate menu and controls
- Selectable display mode showing group/channel, frequency, or battery runtime
- Rugged metal construction
- Transmitter has 328′ (100 meter) line-of-sight operating range
- Features frequency and power lockout
Specs:
- RF Carrier Frequency Range G50: 470 to 534 MHz
- Working Range 328′ (100 m)
- RF Tuning Step Size: 25 kHz, varies by region
- Image Rejection Better than 70 dB, typical
- RF Sensitivity -97 dBm at 10-5 BER
- Latency Less than 2.9 ms
- Frequency Response 20 Hz to 20 kHz
- Audio Dynamic Range System Gain @ 10: Better than 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 6.35 mm (1/4-inch) 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.
- 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 Configuration: unbalanced
- Maximum Input Level 1 kHz at 1% THD: 145 dB SPL (SM58), typical
- Note: Dependent on microphone type
- Maximum Input Level 1 kHz at 1% THD: 145 dB SPL (SM58), typical
- Note: Dependent on microphone type
- Capsule SM58
- RF Output Antenna Type: Integrated single band helical
- Occupied Bandwidth: Less than 200 kHz
- Modulation Type: Shure proprietary digital
- Power: 1 mW or 10 mW (varies by region)
- Housing Machined aluminum
- Dimensions (L x Diam) 10.1 x 1.5″ (256 x 37 mm)
- Weight 12.2 oz (347 g) without batteries
