Description
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.
It includes BLX4 wireless receiver, BLX1 bodypack transmitter, PGA31 headset microphone, power supply, clothing clip, windscreens, and user guide.
BLX1 Bodypack Transmitter
The durable BLX1 features a lightweight, ergonomic design and adjustable gain control. For use with BLX Wireless Systems. It supports up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius.
Features
- Quick and easy receiver frequency matching
- TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables
- Easily accessible On / Off switch
BLX4 Single Channel Receiver
This is single channel wireless receiver with microprocessor-controlled internal antenna diversity. The durable BLX4 features simple setup, intuitive controls, and microprocessor-controlled internal antenna diversity. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference. For use with BLX Wireless Systems.
Features
- XLR and ¼" output connectors
- Two-color audio status indicator LED
- Green: Normal audio levels
- Red: Excessive audio levels (overload / clipping)
PGA31 Headset Condenser Microphone
The PGA31 is an affordable wireless cardioid condenser headset microphone that delivers reliable sound quality for speech and live vocal performance applications.
Designed for long-wearing comfort, the PGA31 offers a secure fit for hands-free operation in any situation. Its unidirectional cardioid polar pattern provides excellent off-axis rejection for higher gain-before-feedback when using a stage monitor.
Available in bundled BLX, GLX-D, and PGX Digital wireless systems, the PGA31 features TA4F 4-pin connectors that make it a viable replacement for any Shure wireless headset system.
Features
- Wireframe headset fits securely for active speakers and vocal performers
- Permanently charged electret condenser cartridge delivers 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 capabilities optimize microphone positioning for further source isolation
- TA4F (TQG) connector seamlessly integrates with Shure wireless bodypacks
- Included windscreen tames plosives for clean and intelligible sound reproduction
- Tailored frequency response for great sound on vocals
- Available with BLX, GLX-D, and PGX Digital wireless systems, renowned for ease-of-use and reliable performance
- Legendary Shure precision engineering for durability and performance
Specifications
Overall System Specifications
- Operating Range: 300 ft (91 m) line of sight
(actual range depends on RF signal absorption, reflection and interference) - Available Frequencies: Between 524 – 865 MHz
(available frequencies depend on applicable regulations in country where system used) - Audio Range: 50 – 15,000 Hz
(dependent on microphone type) - Transmitter RF Output Power: 10 mW, typical (varies by region)
- Audio Output Connector: XLR and 1/4" (6.3 mm) unbalanced
- Maximum Output Level: -27 dBV (XLR, mic level), -13 dBV (1/4")
- Battery Life: Up to 14 hours
- Dynamic Range: 100 dB A-weighted
- System Distortion: 0.5% THD typical
(ref. +/- 38 kHz deviation, 1 kHz tone) - Operating Temperature Range: -18°C (0°F) – +50°C (122°F)
- BLX4 Power Requirements: 12 – 18 V DC at 150 mA, supplied by external power supply
BLX1 Bodypack Transmitter
- Audio Input Level
- Gain max -16 dBV maximum; 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 up to 14 hours (alkaline)
BLX4 Single Channel Receiver
- 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)
PGA31 Headset Microphone
- 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.)
