Shure BLX14/CVL Lavalier Wireless System
Part # BLX14/CVL
Model # BLX14/CVL

The BLX14/CVL Lavalier 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 CVL Lavalier Microphone.

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List Price $374.00
Pro Acoustics Price $299.00
Your Savings $75.00 (20%)

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Pro Acoustics Price $299.00


The 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.

The BLX14/CVL Lavalier Wireless System includes BLX4 wireless receiver, BLX1 bodypack transmitter, CVL lavalier microphone, power supply, lavalier 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 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 Centraverse CVL Lavalier Condenser Microphone is an unidirectional cardioid polar pattern rejects unwanted sound for superior audio quality and vocal reproduction that offers a compact clip-on design and simple, no-nonsense setup.

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



BLX14/CVL Lavalier 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

CVL Condenser Lavalier Microphone:

  • Miniature lavalier microphone with included tie clip offers low visibility and hands-free use
  • Permanently charged electret condenser element provides clear vocal reproduction
  • Unidirectional cardioid polar pattern rejects unwanted noise for improved sound quality
  • Included windscreen reduces plosives, wind, and breath sounds
  • Tailored frequency response optimized for speaking and presentations
  • TA4F (TQG) connector seamlessly integrates with Shure 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
Working Range 300 ft (91 m) Line of Sight
Audio Frequency Response 50 to 15,000 Hz
Total Harmonic Distortion Ref. ±33 kHz deviation with 1 kHz tone 0.5%, typical
Dynamic Range 100 dB, A-weighted, typical
Operating Temperature -18°C (0°F) to 57°C (135°F)
BLX4 Wireless Receiver
Output Impedance XLR connector: 200 Ω, 1/4” (6.35 mm) connector: 50 Ω
Audio Output Level Ref. ±33 kHz deviation with 1 kHz tone XLR connector: –27 dBV (into 100 kΩ load); 1/4” (6.35 mm) connector: –13 dBV (into 100 kΩ
RF Sensitivity -105 dBm for 12 dB SINAD, typical
Image Rejection >50 dB, typical
Housing Molded ABS
Power Requirements 12–15 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)
Weight 8.5 oz (241 g)
CVL Lavalier Condenser Microphone
Type Electret Condenser
Frequency Response 50 to 20,000 Hz
Polar Pattern Unidirectional (Cardioid)
Output Impedance @ 1 kHz, typical 600 Ω
Audio Output Level -43.5 dBV/Pa
Signal-To-Noise Ratio @ 1 kHz 72 dB
Maximum SPL 1000 Ω load, @ 3% THD 139 dB
Dynamic Range@ 1 kHz, 1000 Ω load 117 dB
Equivalent Output Noise Typical, A-Weighted 22 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 50" (1.3 m)
Connector TA4F
Weight 0.88 oz (25 g)
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
Housing Molded ABS
Power Requirements 2 LR6 AA batteries, 1.5 V, alkaline
Battery Life Up to 14 hours (alkaline)
Dimensions (H x W x D) 4.33" (110 mm) x 2.52" (64 mm) x 0.83" (21 mm)
Weight (without batteries) 2.6 oz (75 g)
System Includes

System Includes

  • (1) BLX4 Single Channel Wireless Receiver
  • (1) CVL Lavalier Condenser Microphone
  • (1) BLX1 Bodypack Transmitter
  • (1) PS23US Power Supply
  • (2) AA Batteries

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