Shure QLXD2/KSM9HS Digital Wireless Handheld Microphone Transmitter

Featuring transparent 24-bit digital audio quality and incredibly efficient RF spectrum usage and topped with the Shure KSM9HS wireless microphone capsule, the QLXD2/KSM9 handheld wireless mic is ideal for wireless vocals in presentation spaces, music venues, and houses of worship.

The QLXD2 Handheld Microphone Transmitter

Setup is simple with the QLXD2 handheld microphone transmitter. It quickly syncs with a wireless receiver over IR at the push of a button and maintains clear, uninterrupted signal over its entire 100 m (330 ft.) range. All metal construction ensures durability, and up to 9 hours continuous use with 2 x AA alkaline batteries make way for knockout performances, time after time. Selectable display mode shows group/channel, frequency, or battery runtime for quick checks and adjustments.

The KSM9HS Condenser Vocal Microphone Capsule

Capture the nuances and detail of your vocals with the KSM9HS mic capsule. Boasting a dual diaphragm design and switchable polar patterns (supercardioid and cardioid), the KSM9HS has been designed specifically for stellar performance in live environments. It offers exceptional consistency across all frequencies, delivering more gain before feedback while simultaneously decreasing the proximity effect.

More about QLX-D Digital Wireless Systems

QLX-D Digital Wireless systems deliver more wireless capacity to mid-size venues without compromising signal. Streamline setup across multiple receivers. The 24-bit digital audio and the wide frequency response capture the sound as clearly and accurately as it was produced. Wireless Workbench® software provides real-time access, monitoring and control throughout the performance, allowing you to manage the system from your iOS device for maximum convenience. The rechargeable lithium-ion battery option extends performance on stage.

Shure QLXD2/KSM9HS Features

• 20 Hz to 20 kHz frequency range with flat response (actual response is microphone dependent)
• Interchangeable Shure microphone capsules, including the legendary SM58®
• AES 256-bit encryption for secure transmission
• Over 120 dB of dynamic range - no transmitter gain adjustment needed
• 1, 10 mW selectable RF output power
• Up to 9 hours continuous use with 2 x AA alkaline batteries
• Optional Shure lithium ion rechargeable battery provides up to 10 hours of continuous use and reports remaining runtime in hours and minutes
• External charging contacts for docked charging
• Backlit LCD with easy to navigate menu and controls
• Selectable display mode showing group/channel, frequency, or battery runtime
• 100 meter (330 ft.) line-of-sight operating range
• Rugged metal construction
• Frequency and power lockout

• KSM9HS handheld microphone1
• QLXD2 transmitter1
• QLXD4 receiver1
• AA batteries2
• Power supply1
• Antennas2
• BNC cables (2')2
• BNC bulkhead adapters2
• Zipper bag1
• Rackmount kit1

• Mic Offset Range 0 to 21 dB (in 3 dB steps)
• Battery Type Shure SB900A Rechargeable Li-Ion or AA batteries 1.5 V
• Battery Runtime (@ 10 mW)
  • Shure SB900A: up to 10 hours
  • Alkaline: up to 9 hours 
• Dimensions (L × Dia.) 10.1 × 2.0 inches (256 × 51 mm)
• Weight (without batteries)12.2 oz (347 g)
• HousingMachined aluminum
• Audio Input
  • Configuration: Unbalanced
  • Maximum Input: Level (1 kHz at 1% THD): 145 dB SPL (SM58), typical (Dependent on microphone type)
• RF Output
  • Antenna Type: Integrated Single Band Helical
  • Occupied Bandwidth: < 200 kHz
  • Modulation Type: Shure proprietary digital
  • Power: 1 mW or 10 mW (varies by region)