The BLX14/CVL Lavalier 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.
Includes BLX4 wireless receiver, BLX1 bodypack transmitter, CVL lavalier microphone, power supply, lavalier clip, windscreens, and user guide.
System technical specifications
Compatible systems per frequency band (up to): 12
Selectable frequencies: Up to 150
Auto Setup Features: QuickScan : Finds group with most compatible frequencies and sets to best frequency
Audio Reference Companding: No
Included Antennas: BLX4, BLX88: Internal, BLX4R: Detachable
Antenna Options: No
Receiver Network Ability: No
PC Control: No
Rack Hardware: URT2 (not included), Rack mount brackets (only with rackable/BLX-R Sets)
Case: No
Transmitter Display: LED
Receiver Display: BLX4, BLX88: LED, BLX4R: High-resolution LCD screen
Battery, Endurance: 2AA, up to 14h
Environment: Small to medium stages
Further Technical Specs
Operating Range: 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)
Power Requirements: BLX1, BLX2: 2 AA alkaline or rechargeable batteries
BLX4: 12–18 V DC at 150 mA, supplied by external power supply
Component Specifications:
BLX4 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
Housing: Molded ABS
Power Requirements: 12–15 V DC @ 160 mA, supplied by external power supply (tip positive)
BLX1 Bodypack Transmitter
Audio Input Level:
– gain max: -16 dBV maximum
– gain 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, without batteries
Housing: Molded ABS
Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline
Battery Life: up to 14 hours (alkaline)
