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The OneKnob Filter Black Friday deal from Waves takes 38% off this single-knob filter plugin, which brings it to $29.99 until Nov 26, 2026.
OneKnob Filter is a low-pass filter plugin built around one cutoff control. Waves says it moves from low to high frequencies so smoothly that it sounds like the analog circuits in vintage synthesizers.
The cutoff runs from below 20 Hz to above 20 kHz. At the bottom of the range, the filter is so low that it mutes the audio. At the top, the full audio frequency range passes through.
The filter is a 12 dB/octave low-pass design. Waves says the sweep has no quantized "stair-stepping", so the cutoff moves in a continuous glide instead of audible jumps.
A resonance button steps through 4 settings, from none to extreme.
Waves positions it for altering the tone of instruments and vocals in the studio. It also suits dance productions and breakdowns, where a quick filter sweep is a common move.
For live use, Waves calls it an ideal DJ tool. The control and sound are meant to feel like the filter on a club DJ mixer, so the behaviour should be familiar if you have spent time on one.
Automate the knob and you get the wah-style effects the maker describes. You can also build dynamics live for a club set by riding the cutoff by hand.
On Mac, OneKnob Filter runs on macOS Monterey 12, Ventura 13, Sonoma 14 and Sequoia 15. Formats are VST, AU and AAX.
On PC, it needs Windows 10 or later. Formats are VST and AAX.
Yes. The OneKnob Filter Black Friday deal takes 38% off this Waves filter plugin and puts it at $29.99. The offer runs until Nov 26, 2026.
It is a 12 dB/octave low-pass filter with a single cutoff control. The cutoff runs from below 20 Hz, where the audio is muted, to above 20 kHz, where the full range passes. Waves says the sweep is silky-smooth, without stair-stepping.
Yes, it is available as a VST on both platforms. On Mac the formats are VST, AU and AAX, running on macOS Monterey 12 through Sequoia 15. On Windows 10 or later, it comes as VST and AAX.
Waves calls it an ideal live DJ tool. It aims for the same familiar sound and control as DJ club mixers. You can automate the knob for wah-style effects or ride the cutoff by hand to build dynamics for the club.
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