A filter that permits the highs to go through, but attenuates the lows (e g , We used a high pass filter on my factory 4-inch dash speakers so that they wouldnt burn up when the bass hits hard )
A filter that passes frequencies above the one it was designed for unchanged, and attenuates , or reduces the level of the signal below the frequency range it was built for
Passing only higher frequencies, such as the high-pass filters that provide treble control in audio equipment Crossover networks and equalizers also incorporate high-pass filters to separate or control the treble component of audio signals
A filter used to cut out low frequencies and allow high frequencies to 'pass' through