For Use With ULXD4 Receiver, Rugged Metal Housing

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The Shure ULXD1 Wireless Bodypack Transmitter is a lavalier, headworn microphone and instrument transmitter for hands-free wireless microphone and instrument operation (microphones and instrument cables sold separately). The ULXD1 is sold as part of the ULX-D Digital Wireless Microphone System, or may be purchased separately and used with an existing ULXD4 digital wireless receiver.

The compact bodypack transmitter features a rugged metal housing, TA4-M (4-pin male) audio input, comprehensive LCD display and much more. The ULXD1 features pristine, compandor-free digital transmission for uncompromising sound quality, range and detail. Its 256-bit encryption keeps wireless transmissions secure, and its adjustable RF output power delivers maximum range wherever necessary. The ULXD1 operates on either alkaline AA batteries or Li-Ion rechargeable batteries for up to 12 hours.

Key Features

  • AES 256-bit encryption for applications requiring secure data transmission
  • Proprietary Shure gain ranging optimises the system's dynamic range for any input source, eliminating the need for transmitter gain adjustments
  • Shure SB900 Lithium-Ion rechargeable battery provides up to 12 hours of battery life, precision metering 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
  • Detachable 1/4 wave antenna
  • Frequency and power lockout


Connector4-Pin male mini connector (TA4M)

1 Mega ohm
Impedance50 Ohms
Operating Range300' (100m)
Gain Range0 to 21 dB (in 3 dB steps)
Line Max Input LevelPad Off: 8.5 dBV (7.5 Vpp)
Pad On: 20.5 dBV (30 Vpp)
EINPreamplifier Equivalent Input Noise (EIN), System Gain Setting = +20: 120 dBV, A-weighted, typical
RF OutputSMA
Antenna1/4 wave
BandwidthOccupied Bandwidth: < 200 kHz
ModulationShure Proprietary Digital
Output Power1 mW, 10 mW, 20 mW
Frequency Response20 Hz to 20 kHz (±1 dB), flat
Note: Dependant on microphone type
BatteryShure SB900 Rechargeable Li-Ion or AA batteries
Battery Runtime @ 10 mW:
Shure SB900: > 12 hours
Alkaline: 11 hours
HousingCast aluminium
Dimensions (HxWxD)3.4 x 2.6 x 0.9" (86 x 66 x 23 mm)
Weight142 g (5.0 oz), without batteries
Shure ULXD1 Wireless Bodypack Transmitter
RM Product #: