25 pro plugins that behave perfectly, until you flip the Sus switch and one of them does something it was never meant to: a compressor that gets louder where it should duck, a reverb that swells before the note, a chord that refuses to resolve. Not noise. Weird, on purpose, and somehow musical. All 25 for £9.99 a year, and you flip the switch on a 7-day free trial. Dare yourself to hear nothing.
All 25 plugins · AU & VST3 · macOS, Windows & Linux · cancel anytime
The Sus switch · on every single plugin
“Does that plugin even do anything?” Fair question. Most ‘character’ plugins do so little you couldn’t pick them in a blind test. So we went the other way. Every SUS4 plugin has a Sus switch. Off: the clean processor you trust on every mix. On: it does something it was never meant to. Weird, on purpose, and somehow musical.
SUS4 plugins are in public beta
All 25 plugins are live and validated on macOS, Windows and Linux. It’s early. You may still meet the odd rough edge. Tell us what you find and we’ll fix it fast. Your licence and every future update carry straight through to the full release.
SUS4 COMPLETE
All 25 SUS4 plugins: every compressor, EQ, gate, reverb, creative tool and instrument. Every platform. Every future update. Cancel any time.
The Sus switch · One button. Every plugin.
You’ve seen the threads. Does that gear even do anything, is “character” just snake oil. Fair questions: most “warmth” plugins fail them, doing so little you couldn’t pick them in a blind test. So we went the other way. Flip a Sus switch and a compressor gets louder where it should duck. A reverb swells before the note. A chord hangs and never resolves. Things that shouldn’t work, and absolutely do.
Nobody ever fell in love with a record because it was transparent. They fell for the feel: the pump, the breath, the bite, the thing that shouldn’t work but absolutely does. And nearly every one of those sounds started as someone misusing their gear: a compressor slammed until it pumped, every button jabbed in at once on a unit that was never meant to run that way, an overdriven preamp someone forgot to turn down. Happy accidents became the sound. SUS4 bottles that “what does this do?” instinct and puts it on one switch. On every plugin, on purpose, on your track, every time.
There is, after all, something suspicious about the number 4.
Launch offer · the whole bundle
All 25 plugins (compressors, EQs, gates, reverbs, delays, saturation and creative tools) in one bundle, with every future plugin and update included. No marketing machine, no investors to pay back. Just studio owners who wanted these tools to exist, keeping them at a price that actually makes sense.
All 25 plugins. Subscribe, or own them outright
Flip Sus and it glues your whole mix into one slow, breathing pull. The kind of weight that makes people lean in without knowing why.
In the bundleFlip Sus and it stops holding the mix still and starts shoving it forward. Pure energy and urgency, leaning right at the listener.
In the bundleFlip Sus and the whole clean channel goes through the looking-glass. A familiar sound, suddenly unrecognisable and alive.
In the bundleFlip Sus and your drums don’t get tamed. They get launched, hitting louder and meaner exactly where they punch hardest.
In the bundleFlip Sus and a thin, polite sound grows teeth. A low, dangerous snarl that feels one notch away from breaking up.
In the bundleFlip Sus and the echoes take on a life of their own. A howling, playable tail you ride like an instrument, not an effect.
In the bundleFlip Sus and it drags a stiff, robotic kit back into the pocket. Loose, human, suddenly grooving like a real drummer.
In the bundleFlip Sus and the loudest, harshest moments bloom wide open instead of flattening. Bigger exactly where everything else clamps down.
In the bundleFlip Sus and it lifts the top into a glassy, otherworldly shimmer. Air that seems to come from somewhere just behind the speakers.
In the bundleFlip Sus and the dynamics turn inside-out. The quiet stays, the loud ducks away, breathing like nothing else you own.
In the bundleFlip Sus and it shatters any sound into a living, evolving cloud. Texture that keeps moving and reinventing itself on its own.
In the bundleFlip Sus and it punches rhythmic holes straight through your loudest hits. Stuttering, glitchy and weirdly danceable.
In the bundleFlip Sus and a clean amp tips into screaming, octave-up chaos. A rig pushed way past where it should ever break.
In the bundleFlip Sus and it stacks harmonies that are gloriously wrong. Uneasy, tense and haunting, the kind that give you chills.
In the bundleFlip Sus and every chord it hands you hangs unresolved. That yearning, never-quite-landing ache that makes a song stick.
In the bundleFlip Sus and the ceiling becomes a launch pad. Your loudest moments come back bigger and more in-your-face, not smaller.
In the bundleFlip Sus and it rides your vocal into a slow, living swell. It breathes with the performance instead of pinning it down.
In the bundleFlip Sus and every part of the sound pushes where it shouldn’t. Bold, oversized, unmistakably bigger than life.
In the bundleFlip Sus and it turns into an EQ that pushes back. Boosts where you cut, rings where you push, and still sounds musical doing it.
In the bundleFlip Sus and the room arrives before the note does. A haunted, sucked-in swell that makes a simple line feel possessed.
In the bundleFlip Sus and it carves your sound into choppy, rhythmic notches. A groove machine where you least expect one.
In the bundleFlip Sus and every hit blooms toward you instead of being caught. Notes that swell like they’re being played in reverse.
In the bundleFlip Sus and it’s all bite and attitude. It grabs a part by the scruff and drags it, snarling, to the front of the mix.
In the bundleFlip Sus and you get huge ambience that slams and bursts on its own clock. Drama that arrives with a rhythm you never programmed.
In the bundleFlip Sus and a single note grows itself into a whole evolving rhythm. Set it going and it writes its own part.
In the bundleA few SUS4 compressors lay out their controls the way classic studio hardware did. Strike 76, Lume 2A, Spark 3A, Bond 609, Crimson and Aurum 670 take their control surface from the units that engineers already know by feel. They are inspired by those control surfaces, not modelled on, affiliated with, or endorsed by any manufacturer. The sound is SUS4’s own. All product names and trademarks are the property of their respective owners and are used only to describe the layout a control recalls.
TRY BEFORE YOU BUY
Pick a plugin below and we will send you a 7-day trial licence key by email. No payment required.
Why our plugins are different
Every SUS4 plugin was shaped on a real mix in a real room. If it didn’t hold up on a session with a real artist, it didn’t ship. No test tones, no perfect sine waves. Real programme material, real ears.
From £0.99/month (or £199 once for life) gets you all 25 plugins in the SUS4 suite: compressors, EQs, gates, reverbs, creative tools and more. No tier gymnastics, no per-plugin upsells, no surprise charges.
SUS4 plugins share the exact design language as the 4chordsStudios iOS and Mac apps: same tokens, same type, same dark studio palette. Your screen stays coherent whether you’re in the DAW or on your phone.
Manage your subscription, see your current tier, or resend your licence key, all in one place.
