The art of chorus

A modern modulation playground for lush width, unstable movement, evolving textures and controlled chaos.

quadCHO plug-in interface

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    A modern modulation playground

    Rate

    Set the modulation speed. Hz runs freely; BPM follows the host tempo.

    Detune

    Increase pitch and timing separation between the internal voices for a thicker ensemble.

    Quad

    Add two parallel chorus layers to this engine for a denser, wider sound.

    Shortcuts

    Finally, shortcuts inside a plugin. Move through your session faster.

    CPU friendly

    Built for big sessions, keeping things smooth even when the plugin count gets ridiculous.

    Kelvin Swaby
    I am soooooo blown away by all of the fedDSP plugs I've added to my arsenal. Your plugs sound insane, warmth and depth for days! I am FULLY IN with fedDSP, straight fire!
    Kelvin Swaby Singer & producer · The Heavy
    Sam Winfield & Tom Millar
    fedDSP make some of the most intuitive and character-filled audio tools we've come across! If you need a sound to jump out and hit you in the face, these are the plug-ins for you!
    Sam Winfield & Tom Millar The Pines · Amber Run, CARSICK, Joe Hicks
    Sam Bloor
    fedDSP plug-ins look fantastic and are really easy to navigate. The layout is really intuitive so the learning curve was very minimal.
    Sam Bloor Mix engineer · Blanket, Graphic Nature

    Explore quadCHO

    quadCHO controls

    Use cases

    Tech that removes fear

    Track through it, mix with it, perform it live. No lag, no compromise.
    quadCHO is extremely efficient by design: high impact but low overhead. Big sessions stay fast and smooth, so you can finally bid those ‘System Overload’ playback errors farewell.
    Install. Authorise offline. Done. Keep working with no interruption, no gimmicks and no internet checks. Once it’s yours, it’s yours forever.
    Try it free for 14 days, fully featured and without silence interruptions. No account needed: install, open the plug-in and click Trial.
    Stop relying exclusively on your mouse and keep your hands where it matters, on the keys. Full shortcut support, put the flow back in your workflow.

    £75, Yours forever

    Perpetual licence, free updates, three activations.
    Founders Club £56.25
    Displayed price includes VAT and applicable sales taxes.

    FAQ

    quadCHO is a modern creative chorus plug-in for designing movement, width and atmosphere. It starts from the familiar beauty of chorus, then opens it into a deeper modulation playground where sounds can become wider, thicker, stranger, more alive or completely transformed. Use it for subtle stereo polish, evolving textures, dreamy vocal character, animated synths, ambient guitars, moving loops or creative effects that feel like part of the production, not just an insert on top.
    We provide VST3, Audio Unit, and AAX formats for MacOS, VST3 and AAX for Windows, meaning you can utilise this plugin on any DAW that supports these formats, for example: Logic Pro, Pro Tools, Ableton Live, Cubase, Studio One, FL Studio, Reaper.
    quadCHO is fully native for Apple Silicon chips (M1, M2, M3 etc) as well as Intel Macs. No Rosetta required, but it’s also compatible with Rosetta.
    Each license includes up to three simultaneous activations per user. This could be your main studio machine, a laptop, and a third rig. We understand that modern production often means working across multiple machines, so we’re doing our bit to have your tools available wherever you need them.
    Yes. Download the free 14-day trial from our Downloads page. It has all the features of the full version and no silence interruptions, and you don't need an account: install, open the plug-in and click Trial.
    NEVER. We believe in perpetual licensing and we like to work uninterrupted. So as long as fedDSP is active, your perpetual license will receive unlimited free updates.
    quadCHOBuy £75