Shure ULXD2/KSM9 Wireless Handheld Transmitter (V50 Band - 174-216 MHz)


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  • The Shure ULXD2 is a handheld wireless transmitter compatible with ULX-D Wireless Systems. With a rugged yet lightweight aluminum body and integrated antenna, the ULXD2 delivers uncompromising audio quality and RF performance, AES 256-bit encryption for secure transmission, and advanced rechargeability options for professional sound reinforcement applications.


    • 30 Hz-20 kHz range with flat frequency response (actual response is microphone dependent)
    • Interchangeable Shure microphone cartridges, including the legendary SM58
    • AES 256-bit encryption for applications for which secure transmission is needed
    • Proprietary Shure Gain Ranging optimizes the system’s dynamic range for any input source, eliminating the need for transmitter gain adjustments
    • Shure Lithium-Ion rechargeable battery pack provides over 12 hours of battery life, precision metering in hours and minutes with 5 segment battery fuel gauge, and zero memory effect
    • External charging contacts for docked charging (with the SBC200 Dual Docking Charger)
    • Backlit LCD with easy to navigate menu and controls
    • Rugged metal construction
    • Frequency and power lockout

    Uncompromising Wireless Audio

    • 24-bit/48 kHz audio that delivers incredibly clear and accurate reproduction of the source material
    • 20 Hz-20 kHz frequency range with flat response
    • Greater than 120 dB dynamic range through the analog outputs
    • 130 dB dynamic range (typical) using Dante networked audio
    • 60 dB of adjustable system gain easily accessible from the receiver front panel
    • No transmitter gain adjustments needed: optimized for any input source
    • Wide selection of trusted Shure Microphones

    Extremely Efficient and Reliable RF Performance

    • Up to 64 MHz overall tuning range (region dependent)
    • Up to 17 active transmitters in one 6 MHz TV channel (23 on an 8 MHz TV channel)
    • High Density mode enables up to 47 active transmitters in one 6 MHz TV channel (63 in one 8 MHz TV channel), with no audio quality degradation
    • Rock-solid signal stability with no audio artifacts over the entire 100 meter line-of-sight range using standard supplied 1/2 wave antennas
    • Selectable 1, 10, and 20 mW transmitter RF output power (comparable to 5 times the analog RF output power equivalent)
    • Optimized scanning automatically finds, prioritizes, and selects the cleanest frequencies available

    Scalable, Intelligent Hardware

    • Single (half-rack), Dual, and Quad (full-rack) receiver form factors for any size installation
    • AES 256-bit encryption equipped for secure wireless transmission
    • Ethernet networking for streamlined setup across multiple receivers
    • Wireless Workbench 6 software compatible for advanced frequency coordination, monitoring, and control
    • AMX/Crestron control
    • AXT600 Axient Spectrum Manager compatibility
    • Rugged metal housing on both transmitters and receiver
    • Dual and Quad receivers additionally feature:
      • RF cascade ports, internal power supply, and dual Ethernet ports
      • Dante networked audio over Ethernet
      • Bodypack frequency diversity ensures uninterrupted audio for mission-critical applications
      • Audio summing routes audio signal to multiple outputs

    Shure Advanced Power Management

    • Adapted from industry-leading Axient rechargeable technology
    • Lithium-Ion chemistry and intelligent Shure battery circuitry results in rechargeable batteries with zero memory effect and precision metering
    • Provides ULX-D transmitters with unmatched 11+ hours of performance time
    • Transmitters and receivers display remaining battery life in hours and minutes accurate to within 15 minutes
    • AA backwards compatibility
  • System Specifications
    RF Carrier RangeV50 Band (174 to 216 MHz)
    Working Range 100 m (328 ft)
    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-98 dBm at 10-5 BER
    Latency<2.9 ms
    Audio Frequency ResponseULXD1: 20 Hz - 20 kHz (+/- 1 dB)
    ULXD2: 30 Hz - 20 kHz (+/- 1 dB)
    Note: Dependent on microphone type
    Audio Dynamic Range
    System Gain @ +10
    XLR Analog Output: >120 dB, A-weighted
    Dante Output (Dual and Quad receivers): 130 dB (typical), A-weighted
    Total Harmonic Distortion
    -12 dBFS input, System Gain @ +10
    System Audio PolarityPositive 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-18ºC (0ºF) to 50ºC (122ºF)
    Note: Battery characterstics may limit this range.
    Storage Temperature Range-29ºC (-20ºF) to 74ºC (165ºF)
    Note: Battery characteristics may limit this range.
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