Shure BLX14/SM31 Headworn Fitness Wireless System with Shure SM31FH Fitness Headset Microphone
Part # BLX14/SM31
Model # BLX14/SM31

The Shure BLX14/SM31 headworn fitness wireless system is the ideal entry-level wireless microphone system for small venues. It is part of the BLX wireless systems family and features the SM31FH headset microphone. The Shure SSM31FH fitness headset condenser microphone's moisture-repellent cartridge housing ensures a long product life.

Availability: Usually arrives in 5-9 business days.

Please be aware that global supply shortages outside our control may interfere with our normal delivery times and product availability. For more information, email [email protected] or call us at 888-256-4112.

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Pro Acoustics Price $389.00

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Description

Details

Shure BLX14/SM31 Headworn Fitness Wireless System with SM31FH Fitness Headset Microphone

This Shure BLX wireless system combines 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.

The BLX14/SM31 headworn wireless system includes a BLX4 wireless receiver, BLX1 bodypack transmitter, SM31 fitness headset microphone, power supply, clothing clip, windscreens, and user guide.

The BLX4 single channel receiver features simple setup, intuitive controls, and microprocessor-controlled internal antenna diversity. It includes 1/4" and XLR audio outputs and two-color audio status indicator LED. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference.

The durable BLX1 bodypack features a lightweight, ergonomic design and adjustable gain control. It comes equipped with power and battery status LED, 2 AA batteries that provide up to 14 hours of continuous use and has an operating range (line of sight) of 300 ft (91 m).

The rugged and durable SM31FH is a cardioid condenser microphone constructed with hydrophobic materials that make it ideal for true performance in fitness instruction applications. The moisture-repellent cartridge housing ensures a long product life by protecting the microphone from the corrosion damage that causes typical fitness instruction headsets to fail. Available in bundled BLX wireless systems, the SM31FH features TA4F 4-pin (TQG) connectors that make it a viable replacement for any Shure wireless headset system.

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

Features

Features

BLX14/SM31 Headworn Wireless System:

  • Easy set up and operation
  • One-touch Quickscan frequency selection quickly locates the best open frequency
  • Legendary Shure audio and durable construction

BLX4 Single Channel Receiver:

  • XLR and ¼" output connectors
  • Two-color audio status indicator LED

SM31FH Fitness Headset Condenser Microphone:

  • Wireframe headset fits securely and comfortably for fitness and aerobics instructors
  • Moisture-repellent hydrophobic fabric protects the microphone cartridge from harmful corrosion that occurs in humid environments
  • Flexible gooseneck provides discrete adjustment capabilities to optimize placement for greatest isolation
  • Lightweight and low-profile design won’t fatigue instructors during high-impact use
  • TA4F (TQG) connector is compatible with any Shure wireless bodypack
  • Included windscreen tames plosive, breath, and wind noise for clean and intelligible sound
  • Tailored frequency response ideal for crisp, clear vocal reproduction
  • Available with bundled BLX and GLX-D wireless systems
  • Legendary Shure precision engineering for durability and performance

BLX1 Bodypack Transmitter:

  • 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
Specification
BLX4 Wireless Receiver
Output ImpedanceXLR connector: 200 Ω, 1/4" (6.35 mm) connector: 50 Ω
Audio Output LevelXLR connector: –27 dBV (into 100 kΩ load); 1/4" (6.35 mm) connector: –13 dBV (into 100 kΩ) Ref. ±33 kHz deviation with 1 kHz tone
RF Sensitivity-105 dBm for 12 dB SINAD, typical
Image Rejection>50 dB, typical
HousingMolded ABS
Power Requirements12–15 V DC @ 160 mA (BLX88, 320 mA), supplied by external power supply (tip positive)
Dimensions (H x W x D)1.57" (40 mm) X 7.40" (188 mm) X 4.06" (103 mm)
Weight8.5 oz (241 g)
SM31FH Headset Microphone
TypeElectret Condenser
Frequency Response45 to 20,000 Hz
Polar PatternUnidirectional (Cardioid)
Output Impedance @ 1 kHz600 Ω
Audio Output Level-50 dBV/Pa
Signal-To-Noise Ratio @ 1 kHz66 dB
Maximum SPL 1000 Ω load, @ 3% THD145.0 dB
Dynamic Range @ 1 kHz, 1000 Ω Load117.0 dB
Equivalent Output Noise Typical, A-Weighted28 dB
Power Requirements+5 V DC (nominal), 10 V maximum (DC bias)
PolarityPositive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1
Cable45" (1.1 m)
ConnectorTA4F
Weight2.11 oz (60 g)
BLX1 Bodypack Transmitter
Audio Input LevelGain max: -16 dBV maximum; min (0 dB): +10 dBV maximum
Gain Adjustment Range26 dB
Input Impedance1 MΩ
RF Transmitter Output10 mW, typical
HousingMolded ABS
Power Requirements2 LR6 AA batteries, 1.5 V, alkaline
Battery LifeUp to 14 hours (alkaline)
Dimensions (H x W x D)4.33" (110 mm) x 2.52" (64 mm) x 0.83" (21 mm)
Weight2.6 oz (75 g)
Documents
System Includes

System Includes

  • (1) BLX4 Single Channel Wireless Receiver
  • (1) SM31FH Fitness Headset Condenser Microphone
  • (1) BLX1 Bodypack Transmitter
  • (1) Power Supply
  • (1) Clothing Clip
  • (1) Windscreens
  • (1) User Guide
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