ETS VNF-4 Four Channel Voice Band Notch Filter Interface
The VNF-4 from ETS is a four-channel voice band notch filter interface designed to enhance audio clarity by significantly reducing background noise. This low-cost solution is ideal for use with ETS microphones and DVRs, providing a boost in the human voice frequency band (1.7KHz) while attenuating unwanted sounds on both sides of the bandpass, ensuring improved speech intelligibility.
Features
- RCA or 3.5mm output connectors: Flexibility for compatibility with various audio devices.
- Line level outputs (0db): Ensures optimal signal quality without distortion.
- Provides X2 gain at 1.7Khz: Enhances vocal clarity while effectively reducing noise around the voice frequency.
- Adjustable output level control for each channel: Tailors audio output to specific needs, enhancing usability.
- Euro-style connectors: Facilitates quick and tidy cable terminations for efficient setup.
- 12VDC @ 80mA Power: Low power consumption makes it energy-efficient.
- Reverse polarity protected and fused: Ensures safety and reliability during operation.
ETS VNF-4 Detailed Specifications
| Output Connectors | RCA or 3.5mm |
| Output Level | Line level (0db) |
| Gain | X2 gain at 1.7KHz |
| Attenuation | 10db per octave above and below center frequency |
| Output Control | Adjustable for each channel |
| Power Supply | 12VDC @ 80mA |
| Protection | Reverse polarity protection and fused |
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