Shure ULX Standard UHF Guitar Wireless System

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    Product Description

    Shure's ULX Wireless Systems are designed to put frequency-agile UHF into easy reach of both performers and sound professionals. Each system has 1440 available channels and the Automatic Frequency Selection finds an open frequency instantly. Shure's Predictive Diversity anticipates and avoids sound dropouts.

    Both the transmitter and receiver feature backlit LCD displays. You'll never have to guess at which frequency you're working with. For security, the transmitter can be locked to protect against accidents. The systems will operate up to 8 hours on one 9v battery, transmit up to 300 ft, and can support up to 20 simultaneous systems. 1/2-rack durable construction on the receiver and wide range of systems give the user the best choice of features with Shure's legendary reliability and sound quality. Includes WA302 Cable, ULX1 Bodypack Transmitter, and ULXS4 Standard Diversity Receiver.

    Shure's ULX Series is wireless the way it should be - simple, agile and bulletproof solutions that are affordable for working musicians and professional sound installers. Wireless traffic jamming your transmissions? The frequency agile ULX features Automatic Frequency Selection finds open frequencies for you. Whether ULX Standard or Professional Series Systems, the clear channels and strong transmission free you to concentrate on what matters most - your sound.

    ULX Standard UHF systems represent a breakthrough in performance and price for both working musicians and professional sound installers.

    Product Specifications


    • RF Carrier Frequency Range: 554.000 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.
    ULX1 Transmitter Input
    • Connector: TA4F
    • Input Configuration: Unbalanced, active
    • Actual Impedance: 18 kOhms with lavalier microphone, 1 MOhm with instrument cable
    • Maximum Input Level: 10 Vp–p (12 dBV) for 1% THD at minimum gain setting using 1 kHz signal.
    • TA4F Connector Pin Assignments:
      • Pin 1: Tied to Ground
      • Pin 2: Tied to +5 V
      • Pin 3: Tied to Audio
      • Pin 4: Tied thru 20kOhm Resistor to Ground.
        (On instrument adapter cable, Pin 4 floats)
    • Voltage for Remote Power: +5 V supplied to microphone cartridge
    ULX1 Transmitter Output
    • Actual Impedance: 50 Ohms
    • Nominal Output Level: 20 mW
    • Maximum Output Level: 30 mW
    • Pin Assignments:
      • Shell = Ground
      • Center = Signal
    ULXS4 Receiver Input
    • Connector Type:
      • Antenna: BNC
      • Power Input: IEC 320
    • Actual Impedance: 50 Ohms (antenna)
    • Nominal Input Level:
      • Antenna: –95 to –30dBm
      • Power Input: 15 Vdc
    • Maximum Input Level:
      • Antenna: +6 dBm (–20 dBm recommended)
      • Power Input: 18 Vdc
    • Pin Assignments:
      • Antenna: Shell = Ground, Center = Signal
      • Power Input: IEC Standard
    • Voltage for Remote Power (antenna): 12 Vdc, 150 mA maximum
    ULXS4 Receiver Output
    • Output Configuration:
      • High Z Audio: Unbalanced (1/4 in.)
      • Low Z Audio*: Balanced (XLR)
    • Actual Impedance:
      • High Z Audio: 3 kOhms
      • Low Z Audio: 22 Ohms
    • Pin Assignments:
      • High Z Audio: Tip = Hot, Ring/ Sleeve = Gnd
      • Low Z Audio: 1 = Ground, 2 = Hot, 3 = Cold
    • Voltage/Current/Phantom Power Protection
      • High Z Audio: Yes
      • Low Z Audio: Yes
      *Output Level: Microphone Level = Line Level – 20 dB
    • 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" 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 microV 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 (Duracell MN1604 recommended); 8.4V Nicad optional
      • ULXS4, ULXP4: 14 - 18 Vdc (negative ground), 550 mA
    • Battery Life: 8 to 9 hours (with 9V Duracell MN1604 alkaline battery)
    • Operating Temperature Range: -20° to 49° C (–4° to 120° 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.)
      • ULX2/58, ULX2/BETA 58: 241 mm L x 51 mm Dia. (9.5 x 2 in.)
      • ULX2/87, ULX2/BETA 87: 216 mm L x 51 mm Dia. (8.5 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: 295 g (10.4 oz.) without battery
      • ULX2/87, ULX2/BETA 87: 193 g (6.8 oz.) without battery
      • ULXS4: 1049 g (2 lbs, 5 oz.)
      • ULXP4: 1105 g (2 lbs, 7 oz.)
    Buy with Confidence
    All wireless microphone systems available through AMS are compliant with current FCC rules for safe operation without a license when they leave our warehouse. If you choose to modify a system after purchase, it may no longer be in compliance and may therefore require a license to operate. To learn more about the FCC’s rules regarding wireless microphones (which are subject to change), please call the FCC at 888-CALL-FCC (TTY: 888-TELL-FCC) or visit
    Helpful Info about the Manufacturer
    Phone:  800-257-4873 Warranty:  2 Years
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