Hercules DJCONTROL INPULSE T7 Mode D'emploi page 72

Filters
Adjustment of the track's filter lets you attenuate certain
frequencies.
− Attenuate the high frequencies (known as a low-pass
filter or high-cut filter): turn the filter knob (FILTER) to
the left.
− Attenuate the low frequencies (known as a high-pass
filter or low-cut filter): turn the filter knob (FILTER) to
the right.
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