ETS VNF-4 Four Channel Voice Band Notch Filter Interface

The VNF-4 from ETS is a versatile four-channel voice band notch filter interface designed to enhance speech clarity while minimizing background noise. This cost-effective module is ideal for use with ETS microphones and DVRs, providing a significant boost to frequencies in the human voice band (1.7kHz) while ensuring clear sound output by attenuating unwanted noise at both ends. With its user-friendly features and robust design, the VNF-4 is the perfect solution for improved audio quality in various applications.

ETS VNF-4 Features

• Output Connectors: RCA or 3.5mm output connectors enable flexible integration with various audio equipment.
• Line Level Outputs: Operating at 0dB line level ensures compatibility with standard audio systems.
• Gain and Attenuation: Provides X2 gain at 1.7kHz and 10dB per octave attenuation above and below the center frequency to enhance voice clarity while reducing background noise.
• Adjustable Output Control: Each channel features an adjustable output level control, allowing for precise tuning to meet specific audio needs.
• Euro-style Connectors: These connectors facilitate fast and clean cable terminations for easy installation.
• Power Requirements: Operates on 12VDC at 80mA, making it an efficient choice for audio setups.
• Protection Features: The device is reverse polarity protected and fused, ensuring safe operation and long-term reliability.

ETS VNF-4 Detailed Specifications