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The OneKnob Pumper Black Friday deal takes 62% off this Waves compressor plugin, which brings it to $29.99 until Nov 26, 2026.
OneKnob Pumper is a pumping and ducking effect in a single-knob plugin. It gives you the classic EDM sidechain pulse without the usual setup.
The maker pitches it as "Perfect Pumping. Zero Setup Time." You pick a rhythm, turn the knob, and the track starts to pump.
Pumping music in time with the beat is a staple EDM technique. Normally it means building a sidechain, a trigger track and a compressor setup.
OneKnob Pumper skips that. The maker says no sidechaining is needed, because the plugin creates the ducking instantly.
It works on single tracks or on whole mixes, so you can put it on a bass, a pad or a bus.
The offsets let you push the pump off the main beat. That is how you get a counter-rhythm against the kick instead of a ducking pattern that simply follows it.
No. The maker says the knob does not have to go all the way up, and that you can use it subtly in any genre.
Dialled in low, it adds a rhythmic pulse to pads, bass, keyboards, effects buses and drums. A small amount puts motion and emotion into the beat without an obvious pump.
Turned up, the maker says it adds rhythmic intensity to guitar power chords.
OneKnob Pumper runs on both Mac and Windows. Formats differ by platform:
If your DAW loads VST, AU or AAX plugins, it should be able to host OneKnob Pumper on those systems.
Yes. The OneKnob Pumper Black Friday deal takes 62% off, bringing this Waves compressor plugin to $29.99. The offer ends Nov 26, 2026.
No. The maker says no sidechaining is needed, because OneKnob Pumper creates the ducking instantly. You choose a rhythm, turn the knob, and the pumping starts. There is no trigger track or routing to build first.
It has 10 pumping/ducking rhythms, ranging from 1/32 notes up to bars. It also has 3 rhythmic timing offsets, which you can use to create counter-rhythms against the main beat.
On Mac it comes as VST, AU and AAX, for macOS Monterey 12, Ventura 13, Sonoma 14 and Sequoia 15. On PC it comes as VST and AAX, for Windows 10 or later.
Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.