SLX14/WH20 Headworn Wireless System

WH20 Dynamic Headset Microphones

The Shure WH20 is a rugged, lightweight, dynamic headset microphone that provides high-quality voice pickup. It fits securely for active microphone users, such as aerobics instructors and musicians, with low visibility for stage appearances. Suitable for any voice communications application where comfort and reliability are required.

 

The WH20 has a cardioid (unidirectional) pickup pattern. This provides greater gain-before-feedback and isolation from ambient noise and other unwanted sound sources, such as air-conditioning, musical instruments and loudspeakers. A carefully shaped frequency response includes a voice-frequency presence peak and a low-frequency rolloff to compensate for the proximity effect inherent in cardioid microphones during close-talk operation.

 

An integrated elastic headband secures the headset comfortably. The headband, wireframe, and gooseneck are adjustable to accommodate any head size or shape. WH20 is supplied with foam windscreen and clothing clip.

• WH20QTR - Includes a right-angle 1/4 inch phone plug for use with Shure Headset Wireless Microphone Systems, or any unbalanced microphone input.
• WH20TQG - Includes a a miniature four-pin female 4-pin mini connector for direct connection to Shure wireless body pack transmitters.
• WH20XLR (Wired) - Includes three-pin male XLR connector with a convenient detachable belt clip.

• Lightweight wireframe and headband adjust for a secure, comfortable fit
• Extra-strong, small-diameter attached microphone cable resists breakage
• Collapsible microphone boom for easy storage and transportation
• Smooth, natural frequency response comparable to high-quality dynamic hand-held vocal microphones
• High input clipping level eliminates overload distortion
• Reliable at temperature and humidity extremes
• Supplied foam windscreen and clothing clip
•  

 

Type

Dynamic, Close-Talking

 

Frequency Response (at 8 mm)

50 to 15,000 Hz

 

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Polar Pattern

Cardioid (unidirectional) response -- uniform with frequency, symmetrical about axis

 

Impedance

Microphone rating impedance is 150 ohms (200 ohms actual)

 

Output Level (close talked (at 12.5 mm (1/2 inch)) at 1,000 Hz)

Open Circuit Voltage: -67.0 db/Pa (0.45 mV)

(1 Pa = 94 dB SPL)

 

Hum Sensitivity

38.4 dB equivalent SPL in a 1 millioersted field

 

Polarity

WH20QTR as a wired microphone:

Positive sound pressure on diaphragm produces positive voltage on tip with respect to sleeve (ground) of microphone output phone plug connector.

WH20QTR, WH20TQG used with Shure Wireless Systems:

1/4-inch Phone Jack Receiver Outputs: Positive sound pressure on diaphragm produces positive voltage on tip of receiver output connector.

3-pin XLR Receiver Outputs: Positive sound pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 of low-impedance output connector, and on tip of Aux output connector.

WH20XLR as a wired microphone:

Positive sound pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 of microphone output XLR connector.

 

Environmental Conditions

Operating Temperatures: -18 to 60 degrees C (0 to 140 degrees F)

Storage Temperatures: -29 to 74 degreesC (-20 to 165 degrees F)

Humidity: 0 to 95%

 

Cable

Attached 1.22 m (4 ft), small-diameter, shielded, PVC-jacketed, two-conductor.

 

Cable Connector

WH20QTR: Right-angle 1/4-inch phone plug

WH20TQG: Female 4 pin mini connector (TA4F)

WH20XLR: Three-pin XLR with detachable belt clip

 

Construction

Black thermoplastic housing; stainless steel grille; black TEFLON®-coated stainless steel wireframe; flexible plastic-clad monel gooseneck; rubber/nylon elastic headband

 

Net Weight (including connector)

 

 

WH20: 63 g (2.2 oz)

WH20TQG: 63 g (2.2 oz)

WH20XLR: 98 g (3.5 oz

 

 

SLX4 Wireless Receiver

The SLX4 receiver brings unprecedented ease of use to wireless with Automatic Frequency Selection and Automatic Transmitter Setup. With included rack hardware and detachable antennas, it is ready for immediate installation right out of the box.  Model SLX4L available with logic output for use with software echo cancellation and remote battery life monitoring.  Logic-enabled transmitters include MX690 and MX890.

 

SLX4:    Wireless Receiver

SLX4L:   Wireless Receiver with Logic Output

SLX Wireless Systems feature Shure's patented Audio Reference Companding for crystal-clear sound beyond the limits of conventional wireless technology.

 

• Automatic Frequency Selection
• Automatic Transmitter Setup
• 960 Selectable frequencies across 24 MHz bandwidth
• Detachable 1/4 wave antennas
• Microprocessor-controlled diversity
• RF presence LED
• 5-segment audio meter
• Multi-function, backlit LCD
• Low battery indicator
• Frequency and power lockout
• Rugged metal chassis
• Volume control on rear of unit
• 1/2 rack design
• Furnished rack hardware
• Non-slip bumpers for use out of rack
• XLR and 1/4" outputs
• Optional logic functionality for software echo cancellation and remote battery life monitoring (SLX4L only)

Dimensions

42 mm H x 197 mm W x 134 mm D (1.65 x 7.76 x 5.28 in.)

Weight

816 g (1 lb. 13 oz.)

Housing

Galvanized steel

Audio Output Level (ref. +/– 38 kHz deviation with 1 kHz tone)

XLR connector (into 600 Ω load): –13 dBV

1/4 inch connector (into 3000 Ω load): –2 dBV

Output Impedance

XLR connector: 200 Ω

1/4 inch connector: 1kΩ

XLR output

Impedance balanced

Pin 1: Ground

Pin 2: (+)

Pin 3: (-)

Sensitivity

–105 dBm for 12 dB SINAD, typical

Image Rejection

>70 dB, typical

Power Requirements

12–18 Vdc at 150 mA, supplied by external power supply

Operating Range Under Typical Conditions

100m (300 ft.)

Note: Actual range depends on RF signal absorption, reflection, and

interference

Audio Frequency Response (+/– 2 dB)

Minimum: 45 Hz

Maximum: 15 kHz

Note: Overall system frequency depends on microphone element.

Total Harmonic Distortion (ref. +/– 38 kHz deviation, 1 kHz tone)

0.5%, typical

Dynamic Range

>100 dB A-weighted

Operating Temperature Range

–18°C (0°F) to +50°C (+122°F)

Note: battery characteristics may limit this range

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.

Logic Connections (SLX4L only)

Pin 1: Logic output, Transmitter Mute Status. Mute=low (0 V). Sinks up to 100 mA.

Absolute maximum -0.7 to 5.5V DC
Pin 2: Logic ground
Pin 3: Logic output, Battery Status. Good=low (0 V). Sinks up to 100 mA.

Absolute maximum -0.7 to 5.5V DC

SLX1 Wireless Bodypack Transmitter

The SLX1 bodypack transmitter is designed to hold up to the most adverse conditions. Whether used with headworn, lavalier, instrument microphones, or with guitars or basses, the SLX1 is the definition of reliability.

SLX Wireless Systems feature Shure's patented Audio Reference Companding for crystal-clear sound beyond the limits of conventional wireless technology.

 

• Automatic Transmitter Setup
• Backlit LCD with timeout feature
• Frequency and power lockout
• 3-segment battery fuel gauge
• 2 AA batteries (included) provide 8 hours of continuous use
• 518 - 782 MHz operating range

Audio Input Level

-10 dBV maximum at mic gain position

+10 dBV maximum at 0 dB gain position

+20 dBV maximum at -10 dB gain position

 

Gain Adjustment Range

30dB

 

Input Impedance

1 MΩ

 

RF Transmitter Output

30 mW maximum (dependent on applicable country regulations)

 

Dimensions

108 mm H x 64 mm W x 19 mm D (4.25 x 2.50 x 0.75 in.)

 

Weight

81 grams (3 oz.) without batteries

 

Housing

Molded ABS case

 

Power Requirements

2 “AA” size alkaline or rechargeable batteries

 

Battery Life

>8 hours (alkali

 

SLX14/WH20 Headworn Wireless System

Pirce : 44,300  Baht

Net Price :  28,900 Baht