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The QLXD2/KSM9HS Handheld Wireless Transmitter from Shure offers transparent 24-bit digital audio quality and efficient RF spectrum usage. It is suitable for transmitting wireless vocals in presentation spaces, music venues, and houses of worship. Easy to use, the transmitter quickly syncs with a wireless receiver over IR at the push of a button and maintains clear, uninterrupted signal over its entire 330’ operating range. All-metal construction ensures durability. This transmitter comes with a KSM9HS microphone cartridge.
20 Hz to 20 kHz frequency range with flat response
Comes with KSM9HS microphone cartridge
AES 256-bit encryption for secure transmission
Over 120 dB of dynamic range - no transmitter gain adjustment needed
1 or 10 mW selectable RF output power
Up to 9 hours of continuous use with 2 x AA alkaline batteries
Optional Shure SB900 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
330' line-of-sight operating range
Rugged metal construction
Frequency and power lockout
In the Box
Shure QLXD2 Handheld Wireless Transmitter with KSM9HS Cartridge (X52: 902 to 928 MHz)
2 x AA Alkaline Battery
Table of Contents
RF Carrier Frequency Range
X52: 902 to 928 MHz
330' (100.6 m)
Tuning Step Size: 25 kHz, varies by region
>70 dB, typical
−97 dBm at 10−5 BER
50 to 20,000 Hz
Audio Dynamic Range
System Gain @ +10: >120 dB, A-weighted, typical
Total Harmonic Distortion (THD)
−12 dBFS input, System Gain @ +10: <0.1%
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) (Battery characteristics may limit this range)
Storage Temperature Range
-20 to 165°F (-29 to 74°C) (Battery characteristics may limit this range)
Mic Offset Range
0 to 21 dB (in 3 dB steps)
Shure SB900 rechargeable Li-Ion or AA batteries 1.5 V
At 10 mW Shure SB900: up to 10 hours Alkaline: up to 9 hours
Configuration: unbalanced Maximum Input Level 1 kHz at 1% THD: 150.9 dB SPL (SM58), typical
Antenna Type: Integrated single band helical Occupied Bandwidth: 600 kHz Modulation Type: Shure proprietary digital Power: 1 mW or 10 mW (varies by region)
Dimensions (L x Diam)
10.1 x 2.0" (256 x 51 mm)
12.2 oz (347 g) without batteries
Shure QLXD2 Handheld Wireless Transmitter with KSM9HS Cartridge (X52: 902 to 928 MHz) Review