Overview

The BLX14/P31 Headworn Wireless System is part of the BLX wireless systems family.

Shure BLX® Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage.

 

What;s in the Box?

System Components : The SHURE BLX4 single channel wireless receiver is a durable receiver with simple set-up, intuitive controls and microprocessor-controlled internal antenna diversity. One-touch QuickScan frequency selection quickly locates the best frequency, enabling simple set-up.

BLX4 Features

  • One-touch QuickScan frequency selection quickly locates the best open frequency (in case of interference)
  • Up to 12 compatible systems per frequency band (region-dependent)
  • XLR and ¼” output connectors
  • Microprocessor-controlled internal antenna diversity
  • Two-color audio status indicator LED
  • Green: Normal audio levels
  • Red: Excessive audio levels (overload/clipping)

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

Front Panel Features:


1.) Audio LED - Indicates strength of incoming audio signals: green for normal and red for overload

2.) Ready LED - Green light indicates system is ready for use and receiving transmitter signal

3.) LED Display - Displays group and channel setting

4.) Group and Channel Buttons - Scan: Push and release group button to scan for an open group and channel. Manual : Push and hold group button to select a group. Push channel button to select a channel in the current group

5.) Power Button - Push and hold to turn power on or off.

Rear Panel Features:

1.) DC Power Jack

2.) Adapter cord  tie-off

3.) XLR microphone output jack

4.) 6.35 mm (1/4") instrument level output jack (instrument out).


BLX4 Technical Specs

Output Impedance

  • XLR connector: 200 Ω
  • 6.35 mm (1/4") connector: 50 Ω

Audio Output Level

  • Ref. ±33 kHz deviation with 1 kHz tone
  • XLR connector: –27 dBV (into 100 kΩ load)
  • 6.35 mm (1/4") connector: –13 dBV (into 100 kΩ load)

RF Sensitivity..................-105 dBm for 12 dB SINAD, typical

Image Rejection...............>50  dB, typical

Dimensions......................40 mm X 188 mm X 103 mm (H x W x D)

Weight..............................241 g (8.5 oz.)

Housing.................................Molded ABS

Power Requirements.........12–15 V DC @ 160 mA (BLX88, 320 mA), supplied by external power supply (tip positive) 

System Components : The BLX1 bodypack has a lightweight and durable design. Ergonomically designed to fit comfortably in hand, with adjustable gain control. For use with BLX Wireless systems

Features

  • Up to 14 hours of continuous use with 2 AA batteries (included)
  • Up to 300 ft (100 m) transmission radius
  • Quick and easy receiver frequency matching
  • TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables
  • Toggle on/off switch
  • Adjustable gain control of 26dB (+10 to -16dB)
  • Lightweight, rugged construction 
Panel Features:

1.) LED Indicator - Displays power and battery status

2.) Power Switch - Toggles power on or off

3.) 4-pin Microphone Input Jack (TA4 connector)

4.) Antenna

5.) Group Button - Changes group setting

6.) LED Display - Displays group and channel setting

7.) Channel Button - Changes channel setting

8.) Battery Compartment

9.) Audio Gain Adjustment - Rotate to increase or decrease transmitter gain


BLX1 Technical Specs

Audio Input Level

  • gain max ............-16 dBV maximum
  • gain min .............(0 dB)  +10 dBV maximum

Gain Adjustment Range................26 dB

Input Impedance...........................1 MΩ

RF Transmitter Output..............10 mW, typical varies by region             

Dimensions.....................................110 mm x 64 mm x 21 mm (H x W x D)

Weight.......................................75 g (2.6 oz.), without batteries

Housing..................................Molded ABS

Power Requirements...............2 LR6 AA batteries, 1.5 V, alkaline

Battery Life.............................8 up to 14 hours (alkaline)

System Components :The PGA31 performance headset microphone for general, speaking and performance use is a permanently-biased electret condenser microphone. Engineered to provide maximum versatility and reliable performance in a wide array of conditions at an affordable price, the PGA31 is compatible with any Shure wireless bodypack systems with TA4F (TQG) connectors. Available as an included option for many systems, it also makes a viable replacement option for use in existing systems. The wearable design offers improved comfort and a secure fit for hands-free operation in any situation, while the unidirectional (cardioid) pickup pattern provides excellent off-axis rejection for higher gain-before-feedback when using a stage monitor.

Features

  • Wearable wireframe headset fits securely for multi-instrumentalists and active performers
  • Permanently-charged electret condenser element for detailed, crisp vocals
  • Unidirectional (cardioid) polar pattern rejects unwanted noise for improved sound quality and higher gain-before-feedback
  • Flexible gooseneck design and discrete adjustment options optimize microphone positioning for further source isolation
  • Included windscreen tames plosives for clean and intelligible sound reproduction
  • TA4F (TQG) connector seamlessly integrates with existing Shure bodypack systems
  • Available with a wide variety of Shure wireless systems, renowned for ease-of-use and reliable performance
  • Included windscreen tames plosive, breath and wind noise for clean and intelligible sound
  • Tailored frequency response primed for great sound on vocals
  • Legendary Shure precision engineering for durability and performance
Specifications:

  • Type.......................... Electret Condenser
  • Frequency Response.............. 60 to 20,000 Hz
  • Polar Pattern ........................................Unidirectional (Cardioid)
  • Output Impedance @ 1 kHz, typical ..........600 Ω
  • Audio Output Level.....................................-50 dBV/Pa
  • Signal-To-Noise Ratio @ 1 kHz .......................66 dB
  • Maximum SPL 1000 Ω load, @ 3% THD......... 145.0 dB
  • Dynamic Range @ 1 kHz, 1000 Ω load..............117.0 dB
  • Equivalent Output Noise Typical, A-Weighted ...........28 dB
  • Power Requirements.................... +5 V DC (nominal), 10 V maximum (DC bias)
  • Polarity......................... Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1
  • Cable ........................1.3 m (50 in.)
  • Connector ....................TA4F
  • Net Weight ..................45 g (1.59 oz.)
Frequency Response