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Overview
The BLX14/SM31 Fitness Headset Wireless System from Shure includes a BLX4 single-channel wireless receiver, a BLX1 bodypack transmitter, and a SM31FH fitness headset mic. The system is set to Shure's H9 frequency band and operates between 512 - 542 MHz.
The BXL1 bodypack transmitter has a 300' line of sight operation range with the BLX4 receiver. It is powered by two included AA batteries that can provide up to 14 hours of operation. The BLX4 receiver features microprocessor-controlled internal antenna diversity that helps prevent interference and signal dropouts. Its one-touch QuickScan feature detects the most interference-free frequency and sets the channel to it for fast setup.
SM31FH Fitness Headset Condenser Microphone
The SM31FH Fitness Headset Condenser Microphone from Shure is a cardioid condenser headset microphone designed to be used by fitness and aerobics instructors. It has integrated moisture-repelling hydrophobic fabric that helps protect the microphone capsule from sweat and humidity. A windscreen is included.
- Tailored frequency response refined for crisp and clear vocal reproduction
- Lightweight and low-profile form factors help avoid fatigue during high-impact use
- Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones
- Flexible gooseneck design provides discrete adjustment options to optimize placement for greatest isolation
- Integrated moisture-repelling hydrophobic fabric protects the microphone element from harmful corrosion for use in humid environments
- Wearable wireframe headset designed for a secure, comfortable fit made for fitness and aerobics instructors
BLX4 Single-Channel Wireless Receiver (H9: 512 - 542 MHz)
The BLX4 Wireless Receiver from Shure is a single-channel receiver set to Shure's H9 frequency band and operates between 512 to 542 MHz. It has microprocessor-controlled internal antenna diversity for reduced signal interference and dropouts. The one-touch QuickScan frequency selection feature allows you to quickly locate the frequency with the least amount of interference available.
Its front-panel dual-color LED status indicator displays green for normal levels and red when clipping for fast metering. It has an XLR output in additional to an instrument level ¼" output. The BLX4 can be used with up to 11 other compatible systems simultaneously per frequency band.
BLX1 Bodypack Transmitter (H9: 512 - 542 MHz)
The BLX1 Bodypack Transmitter from Shure is designed for use with Shure's BLX wireless systems. It is set to the H9 frequency band and operates between 512 and 542 MHz. It has a TQG input and can be used with Shure lavalier, headset, earset and instrument microphones. With the optional WA302 adapter cable, the BLX1 can be used as a transmitter for guitar. The unit has a top panel mounted on/off switch as well as volume control for quick access while speaking or performing. The BLX1 is powered by the two included AA batteries for up to 14 hours.
Specifications
Type | Electret condenser |
Frequency Response | 45 Hz to 20 kHz |
Polar Pattern | Cardioid |
Output Impedance | 600 O @ 1 kHz, typical |
Audio Output Level | -50 dBV/Pa |
Signal to Noise Ratio | 66 dB @ 1 kHz |
Maximum SPL | 145 dB, @ 1 kHz (1,000 O load) |
Dynamic Range | 117 dB, @ 1 kHz (1,000 O load) |
Output Noise | 28 dB, typical, A-weighted |
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 | 45" (1.1 m) |
Connector | TA4F |
Warranty & Returns
Reviews
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