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Shure ULXP4 Diversity Receiver (G3, 470-505 MHz)

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This item has either been discontinued by the manufacturer or is no longer available to purchase on our website.

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(800) 771-8330

Professional Diversity Receiver (Frequency Band G3, 470-505 MHz)


Shure ULX Professional wireless receivers offer an exceptional value in both performance and price, for both working musicians and sound installers. For use with ULX Professional Wireless systems.

The expanded feature set of the ULXP4 wireless receiver offers a direct path to full, clear audio signals.

Advanced settings and controls including lockable settings, automatic frequency selection, group scan function, and predictive diversity.

Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.

Available Options
ULXP4: Single Professional Receiver with PS41US Power Supply, 1/2 Wave Antennas, and Rack Mounting Hardware
ULXP4D: Two Professional Receivers with two PS41US Power Supplies, 1/2 Wave Antennas, Dual Rack Mounting Hardware


  • ULXP4 Wireless Receiver Features:
  • Power On Indicator
  • 1/2-wave antennae provide professional-level telemetry
  • Jog wheel for data input
  • Provides power for active remote antennas
  • Receiving Antenna Indicators
  • Automatic Frequency Selection
  • Over 1400 selectable frequencies
  • SQUELCH Indicator
  • SCAN Indicator for Scanning Open Group and/or Channel Frequencies
  • Transmitted (TX) Audio Indicators
  • Group/Channel/Frequency Displays
  • TV Channel Display
  • Frequency and Volume Locks
  • "RF" Level Indicators
  • Transmitter Battery Life Indicator
  • MODE Button for Menu Display
  • SET Button for Saving Settings
  • Display Control Knob
  • Level Control
  • Mic/Line level Switch
  • XLR and 1/4" outputs with level control
  • PS40, PS40E, PS40J or PS40UK in-line power supply with locking DC connector
  • Single rack mounting hardware included


  • RF Carrier Frequency Range
  • 470.000 to 865.000 MHz (Available frequencies depend on the applicable regulations in the country where the system is used). Refer to the frequency supplement supplied with the system.
  • Effective Range
  • 100 m (300 ft.) under optimal conditions
  • NOTE: Actual working range depends on RF signal absorption, reflection, and interference
  • Audio Frequency Response
  • 25 to 15,000 Hz, +/- 2 dB
  • NOTE: Overall system frequency response depends on the microphone element.
  • Transmitter Audio Polarity
  • Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low impedance output) and the tip of the high impedance 1/4-inch output
  • Transmitter Gain Adjustment Range
  • ULX1: 25 dB
  • ULX2: 25 dB
  • Receiver Audio Output Level (+/- 38 kHz deviation, 1 kHz tone)
  • XLR connector (into 600 ohm load): +3.9 dBV (line), -17 dBV (mic)
  • 1/4 inch connector (into 3000 ohm load): -2 dBV
  • Impedance
  • ULX1 (input): 1 Megohm ULXS4, ULXP4 (output): 50 ohms at line level; 2000 ohms at mic level
  • Modulation
  • +/- 38 kHz deviation compressor-expander system with pre- and de-emphasis.
  • RF Power Output
  • ULX1, ULX2: 30 mW maximum
  • Dynamic Range
  • >100 dB, A-weighted
  • RF Sensitivity
  • 1.26 microVolt for 12 dB SINAD (typical)
  • Image Rejection
  • 80 dB typical
  • Spurious Rejection
  • 75 dB typical
  • Ultimate Quieting (reference +/- 38 kHz deviation)
  • >105 dB, A-weighted
  • System Distortion (reference +/- 38 kHz deviation, 1 kHz modulation)
  • 0.3% total harmonic distortion, typical
  • Power Requirements
  • ULX1, ULX2: 9V alkaline battery; 8.4 V Nicad optional
  • ULXS4, ULXP4: 14 - 18 Vdc (negative ground), 550 mA
  • Battery Life
  • 8 to 9 hours (with 9V alkaline battery)
  • Operating Temperature Range
  • -20 degrees to 49 degrees C (-4 degrees to 120 degrees F)
  • NOTE: Battery characteristics may limit this range.
  • Overall Dimensions
  • ULX1: 96.5 mm H x 67 mm W x 26.7 mm D (3.86 x 2.68 x 1.10 in.)
  • ULX2/SM58: 228.6 L x 51 mm Dia. (9 x 2 in)
  • ULX2/BETA 58: 220.9 mm L x 51 mm Dia. (8.7 x 2 in.)
  • ULX2/SM86: 213 mm L x 49 mm Dia. (8.4 in x 1.9 in)
  • ULX2/87, ULX2/BETA 87: 223.5 mm L x 51 mm Dia. (8.8 x 2 in.)
  • ULX4S: 43 mm H x 214 mm W x 163 mm D (1.72 in. x 8.56 in. x 6.52 in.)
  • ULX4P: 43 mm H x 214 mm W x 172 mm D (1.72 in. x 8.56 in. x 6.88 in.)
  • Net Weight
  • ULX1: 79 g (2.8 oz.) without battery
  • ULX2/58, ULX2/BETA 58: 289 g (10.2 oz.) without battery
  • ULX2/SM86: 251 g (8.8 oz.) without battery
  • ULX2/87, ULX2/BETA 87: 258 g (9.1 oz.) without battery
  • ULXS4: 1049 g (2 lbs, 5 oz.)
  • ULXP4: 1105 g (2 lbs, 7 oz.)
  • ULXP4, ULXS4 Receiver Audio Output
  • Connector: Unbalanced (1/4 in.): Balanced (XLR)
  • Actual Impedance: 3 kilohm: Mic. Level: 1848 Ohms
  • Line Level: 75 Ohms
  • Pin Assignments: Tip = Hot
  • Ring/Sleeve = Ground: 1 = Ground
  • 2 = Hot
  • 3 = Cold
  • Phantom Power Protection™: Yes: Yes
  • ULXP4, ULXS4 Receiver Antenna Input
  • Connector Type: BNC
  • Actual Impedance: 50 Ohms
  • Nominal Input Level: -95 to -30 dBm
  • Maximum Input Level: +6 dBm (-20 dBm recommended)
  • Pin Assignments: Shell = Ground, Center = Signal
  • Voltage for Remote Power: 12 Vdc, 150 mA maximum

Q & A

MFR Part Number
Product Category
Wireless Receivers
Unit of Measure
Shipping Weight
7.82 lbs.
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