Used Shure BLX14/SM31 Headset Wireless Microphone System, Includes BLX1 Bodypack Transmitter, BLX4 Single-Channel Wireless Receiver, SM31 Fitness Headset Microphone, H9: 512.125-541.800MHz

SKU: US1809487

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TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest in Pre-Owned Gear & Peace of Mind!

Extend coverage on pre-owned products after the retailer warranty ends and protect photo & video gear from accidental damage with Adorama Protect.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Extended Protection

Coverage for pre-owned gear begins after the retailer warranty ends, plus accidental damage protection for photo/video gear that starts on day one.

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Peace of Mind

Enjoy your gear without fear. We have you covered!

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Malfunction Protection

When regular use of your product over time results in mechanical or electrical failure.

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Zero Deductible

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Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for International and U.S. territories purchases. Plans on pre-owned items do not cover pre-existing damages.

Shure BLX14/SM31 Specifications

  • Transmitter: Audio Input Level

    Gain Max: -16dBV Maximum
    min (0dB): +10dBV Maximum

  • Transmitter: Gain Adjustment Range

    26dB

  • Transmitter: Input Impedance

    1 MOhms

  • Transmitter: RF Transmitter Output

    10mW, typical

  • Transmitter: Housing

    Molded ABS

  • Transmitter: Power Requirements

    2 LR6 AA batteries, 1.5V, alkaline

  • Transmitter: Battery Life

    Up to 14 hours (alkaline)

  • Transmitter: Frequency Band

    H9: 512.125-541.800MHz

  • Receiver: Output

    1x XLR Output
    1x 1/4" (6.35mm) Output

  • Receiver: Output Impedance

    XLR: 200Ohms
    1/4": 50Ohms

  • Receiver: Audio Output Level

    XLR Connector: -27dBV into 100kOhms Load (Reference +/-33kHz with 1kHz Tone)
    1/4": -13dBV into 100kOhms Load (Reference +/-33kHz with 1kHz Tone)

  • Receiver: RF Sensitivity

    -105dBm for 12dB SINAD, Typical

  • Receiver: Image Rejection

    >50dB, Typical

  • Receiver: Housing

    Molded ABS

  • Receiver: Power Requirement

    12 to 15V DC at 160mA, Supplied by External Power Supply (Tip Positive)

  • Receiver: Frequency Band

    H9: 512.125-541.800MHz

  • Mic: Type

    Electret Condenser

  • Mic: Frequency Response

    45 to 20,000Hz

  • Mic: Polar Pattern

    Unidirectional (Cardioid)

  • Mic: Output Impedance

    600Ohms at 1kHz, typical

  • Mic: Audio Output Level

    -50dBV/Pa

  • Mic: Signal-To-Noise Ratio

    66dB at 1KHz

  • Mic: Maximum SPL

    145.0dB at 3% THD (1000Ohms load)

  • Mic: Dynamic Range

    117.0dB at 1kHz (1000Ohms load)

  • Mic: Equivalent Output Noise

    28dB, Typical, A-Weighted

  • Mic: Power Requirements

    +5V DC (nominal), 10V maximum (DC bias)

  • Mic: Polarity

    Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1

  • Mic: Cable

    1.1m / 3.61'

  • Mic: Connector

    TA4F

  • Dimensions (H x W x D)

    Transmitter: 110 x 64 x 21mm / 4.33 x 2.52 x 0.83"
    Receiver: 40 x 188 x 103mm / 1.57 x 7.40 x 4.06"

  • Weight

    Transmitter: 2.65oz / 75.13g (without batteries)
    Receiver: 8.5oz / 240.97g
    Mic: 2.11oz / 59.82g

About Shure BLX14/SM31 Headset Wireless Microphone System, Includes BLX1 Bodypack Transmitter, BLX4 Single-Channel Wireless Receiver, SM31 Fitness Headset Microphone, H9: 512.125-541.800MHz

The SM31FH cardioid condenser microphone with analogue transmission, designed for use in fitness instruction, features moisture-repelling construction for true performance in humid applications where corrosion damage is common.

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.

Includes BLX4 wireless receiver, BLX1 bodypack transmitter, SM31 fitness headset microphone, power supply, clothing clip, windscreens, and user guide.


- BLX1 Bodypack Transmitter -
Analog wireless bodypack BLX1 for use as part of BLX and BLX-R Analog Wireless Systems.

The durable BLX1 features a lightweight, ergonomic design and adjustable gain control. For use with BLX Wireless Systems.


- BLX4 Single-Channel Wireless Receiver -
Analog wireless receiver provides improved linearity and frequency response with group and channel scan for easy set-up. Features include microprocessor internal antenna diversity, frequency QuickScan, and two-color audio status indicator LED.

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.


- SM31FH Fitness Headset Condenser Microphone -
Cardioid fitness headset condenser microphone offers a moisture-repelling hydrophobic construction for use in fitness training, Features include windscreen and compatibility with Shure bodypack systems for replacement of TA4F-connected microphones.

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 and GLX-D wireless systems, the SM31FH features TA4F 4-pin (TQG) connectors that make it a viable replacement for any Shure wireless headset system.

Shure BLX14/SM31 Headset Wireless Microphone System, Includes BLX1 Bodypack Transmitter, BLX4 Single-Channel Wireless Receiver, SM31 Fitness Headset Microphone, H9: 512.125-541.800MHz Features

  • Transmitter: Quick and easy receiver frequency matching
  • Transmitter: TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables
  • Transmitter: Easily accessible On / Off switch
  • Receiver: XLR and 1/4" output connectors
  • Receiver: Two-color audio status indicator LED
    Green: Normal audio levels
    Red: Excessive audio levels (overload / clipping)
  • Mic: Wearable wireframe headset with secure, comfortable fit made for fitness and aerobics instructors
  • Mic: Integrated moisture-repelling hydrophobic fabric protects the microphone element from harmful corrosion for use in humid environments
  • Mic: Flexible gooseneck design provides discrete adjustment options to optimize placement for greatest isolation
  • Mic: Lightweight and low-profile form factors stave off fatigue during high-impact use
  • Mic: Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones
  • Mic: Available with a wide variety of Shure wireless systems, renowned for their ease of use and reliable performance
  • Mic: Included windscreen tames plosive, breath and wind noise for clean and intelligible sound
  • Mic: Tailored frequency response refined for crisp and clear vocal reproduction
  • Mic: Legendary Shure precision engineering for durability and performance

What's in the box:

  • Shure BLX1 Bodypack Transmitter
  • BLX4 Single-channel Wireless Receiver
  • SM31 Fitness Headset Microphone
  • Power Supply
  • Clothing Clip
  • Windscreens