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ULXS14/51 Lavalier Wireless System

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Overview

The Shure ULXS14/51 Standard Wireless Microphone System includes WL51B Microflex Cardioid Subminiature Lavalier Microphone, ULX1 Bodypack Transmitter, and ULXS4 Diversity Receiver. ULX Standard UHF systems represent a breakthrough in performance and price for both working musicians and professional sound installers. Multiple system configurations provide limitless options, each with a choice of legendary Shure microphone transmitters. Over 1400 selectable, pre”programmed frequencies are available, and Automatic Frequency Selection provides a straight shot to a clear channel.

WL51B Lavalier Microphone
Shure's WL51B Lavalier microphone sets a new standard for miniature microphones. Visually unobtrusive, the WL51B provides uncompromised sound quality and high reliability with minimal visibility in sound reinforcement applications such as television broadcasting and stage performances. Despite its small size, the microphone's condenser element provides full, clear and natural reproduction of speech.

ULX1 Wireless Bodypack Transmitter
The low-profile, highly durable body-pack ULX1 has all the characteristics to meet the demands of high performance. For use with headworn, Lavalier and instrument microphones, as well as guitars and basses. Attaches to belt, waistband or guitar strap with clip for hands-free mobility.

Shure ULXS4 Standard Receiver
The Shure ULXS4 Standard receiver offers an exceptional value in both performance and price, for both working musicians and sound installers looking for a wireless solution. The feature set of the versatile ULXS4 receiver offers a direct path to full, clear audio signals, unencumbered and unattached.

Features

WL51B Lavalier Microphone

Subminiature size
Electret condenser cartridge
Unidirectional pattern
Two termination options: 4-pin mini connector (fits directly into Shure wireless transmitters), or unterminated (bare wire)
High Boost equalization caps included for optimal clarity and response
Provides a 10 dB boost centered at 12 kHz
Used in applications that require a chest-worn microphone
Frequency response: 20-20,000 Hz
Low visibility with a variety of options for mounting
Low handling noise
Legendary Shure quality, ruggedness, and reliability

ULX1 Wireless Bodypack Transmitter

Three-segment battery fuel gauge
Frequency and power lockout
Flexible 1/4 wave antenna
TA4F mini four-pin input connector
Backlit LCD display shows group and channel setting
Adustable audio gain control
Input attenuation switch (selects 0 dB or -20 dB attenuation)
PEAK icon appears when audio input overloads the transmitter
Power on/off switch
8 hour battery life (9V battery)
300 foot (100m) operating range

ULXS4 Diversity Receiver

Automatic Frequency Selection with group scan function
Over 1400 selectable frequencies
5-segment transmitted audio signal strength meter
RF indicator
3-segment transmitter battery fuel gauge
Advanced multi-function LCD displays group and channel
Mic/Line switch
Remotable 1/2-wave antenna
XLR and 1/4-inch output
Rugged plastic chassis
1/2 rack design

Specs

ULXS14/51 Lavalier Wireless System 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 Mohms 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 20kohms 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

ULXS4 Receiver Input

Connector Type: Antenna - BNC; Power Input ” IEC 320

Actual Impedance: Antenna 50 Ohms

Nominal Input Level: Antenna - ”95 to ”30 dBm; 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

Connector: High Z Audio; Low Z Audio*

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/PhantomPower 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: 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

Modulation: ±38 kHz deviation compressor-expander system with pre- and de-emphasis.

RF Power Output: 30 mW maximum (ULX1)

Dynamic Range: >100 dB, A-weighted

RF Sensitivity: 1.26 uV for 12 dB SINAD (typical)

Image Rejection: 80 dB typical

Spurious Rejection: 75 dB typically

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- 9V alkaline battery (8.4 V Nicad optional);

ULXS: 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.

ULX1 Dimensions (H x W x D): 3.86 x 2.68 x 1.10 in. (96.5 x 67 x 26.7 mm)

ULX1 Net Weight: 79 g (2.8 oz.) without battery

ULXS4 Dimensions (H x W x D): 1.72 x 8.56 x 6.52 in. (43 x 214 x 163 mm)

ULXS4 Net Weight: 2 lbs, 5 oz. (1,049 g)

WL51B Lavalier Microphone

Type: Condenser (electret bias)
Polar pattern: Cardioid
Output Impedance: N/A
Recommended Min. Input Impedence: 20Kohms
Output level: 50.0 dBV/Pa (1 Pa=94 dB SPL)
Maximum SPL: 138 dB at 1% THD/20 kilohm load
Frequency Response: 20 to 20,000 Hz
Dynamic Range: 103 dB
Output Noise (Equivalent SPL, A-weighted): 35.0 dB typically, 38 dB Maximum
Signal-to-noise ratio: 59 dB at 94 dB SPL
Power Requirements: +5 Vdc on pin 2, return on pin 1 (ground)
Current Drain: 60 130uA
Polarity, Positive pressure on diaphragm produces positive voltage at: pin 3 relative to pin 1 at the output connector of the microphone.
Cable and Connector: 5 ft. (1.5 m), small-diameter, shielded, with miniature female; 4-pin connector (TA4F type).
Dimensions (diameter x height): 0.22" x 0.43"(5.8 x 11 mm)
Net Weight: 0.7 oz. (21 g) with cable and connector.

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ULXS14/51 Lavalier Wireless System

Features

ULXS14/51 Lavalier Wireless System Specifications:

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