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Sequenced Resonator Distortion Plugin by FKFX Audio
FKFX Influx FKFX Influx FKFX Influx
Influx by FKFX Audio is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin and a VST 3 Plugin.
Windows 10, 11 (64-bit Windows only).
CPU: 2 GHz or faster
Memory: 1 GB or more
All plugin formats in 64-bit only.
macOS 11 (Big Sur), macOS 12 (Monterey) and above.
Intel / M1 Native
CPU: 2 GHz or faster
Memory: 1 GB or more
All plugin formats in 64-bit only.
Copy Protection
Online Activation (Challenge / Response)
My KVR - Groups, Versions, & More
227 KVR members have added Influx to 93 My KVR groups 268 times.
Not In Your MY KVR Groups
(or group limitation prevents versioning)
+93 in private groups

KVR Rank

Overall: 176   140   175

30-Day: 312; 7-Day: 300; Yesterday: 558

Influx is an instant "Sonic Retox" engine. The resonator module (FLUX) goes thru a Low Pass and a Tube distortion. Flux resonator Note and Dry/Wet have their dedicated editors.

Influx lets you create new grooves from your current input. Selecting "WET ONLY" will output only the transformed part of the signal.

Influx comes with 210 Factory preset.


  • Flux Resonator: multi-point LFO Editor on resonator note.
  • Flux Chaos: Resonator realtime re-fuel with audio input.
  • Flux Center Note: Select the root note for the Flux Resonator with optional MIDI control.
  • Flux Scale Snap with 38 automatic scale modes.
  • Flux Stereo: adds stereo pitch shift between left and right Flux Resonator.
  • Flux LFO: controls Low Pass Filter.
  • LFO Rate: From 4 Bars to 16th, with polyrhythmic rate (i.e. 5th, 7th).
  • Low Pass Filter: can be controlled with Flux Resonator LFO.
  • 16 Waveshapers.
  • Tube Distortion.
  • Low Cut Filter: Remove low rumble from signal.
  • Gain: Sets post distortion gain, 48dB/+48dB, exponential.
  • Dry/Wet Maximum.
  • Dry/Wet LFO Editor.
  • WET ONLY switch: get only the resonator wet signal.
  • FULL WET button, with extra strike animation.
  • Editor Tools: Smooth, Normalize, Flip, Chop, Roll, Pencils, snap modes, etc..
  • Editor Modes: Point edit mode, and a global Select Mode.
  • Preferences: OpenGL animations, MIDI Note, MIDI Thru.
  • Vumeters: Input and Output Vu Meter.
  • Preset Manager.
  • Preset Locking option: Locks part of the plugin, so to stay unchanged on preset load.
  • 210 Presets.

{See video at top of page}

Latest User Reviews

Average user rating of 5.00 from 4 reviews

Reviewed By elviecho [all]
November 8th, 2021
Version reviewed: 1 on Windows

What a nice concept. The Interface is simple to use and entertaining to watch.
You can achieve very good sounding, musical results with this one.
For me the best free fx plugin in 2021.

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Reviewed By Alfred0001 [all]
November 1st, 2021
Version reviewed: 1.01 on Windows

Works great, a lot of presets and very smooth GUI. Wonderful work! Very sophisticated efects are possible and the plugin has great visual editors and visual effect while playing your music.

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Reviewed By Eine Alte Oma [all]
July 15th, 2021
Version reviewed: 1.0.1 on Windows

I've thrown quite some weird stuff at this thing and it harmonized it with this unique distorting-ish approach. the aesthetic of the sound is actually something that i had in mind for quite some time but i couldn't reach for it with my other plugins. this plugin has some sort of texture that reminds me of old doors that start to make noise when you open or close them slowly. that sounds kinda bad, but i mean it in a good way, a really great way in fact.

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Reviewed By keyth72 [all]
July 8th, 2021
Version reviewed: 1.0.0 on Windows

I feel like a mad scientist when I use this thing! Insane visuals, never seen anything like it in an audio plugin. I'll be spending a lot of time playing around with this one.

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Comments & Discussion for FKFX Audio Influx

Discussion: Active
4 July 2021 at 7:14pm

@choomaque: have you already contacted the developer? I experienced a severe memory problem on my machine (with Obvious Filter), I contacted the dev and he fixed the problem within a day. I'm sure he'll do the same for you if possibile.

Support seems really quick and friendly to me. If you haven't aldready, drop him a line. I hope it helps.

I like Influx and Obvious Filter very much, actually. Cheers.


4 July 2021 at 9:50pm

It works perfectly to me in FL Studio, and i love it. It gives extra sustance to drumloops or drums patterns in a glitchy creative way. I have been asking to something like this since years when KVRDC just began.

Have a good day.

5 July 2021 at 9:05pm

I use the newest version of FL and use Windows 10. It works great and is a really cool plugin.

6 July 2021 at 8:59am

Hi There, .

A new update is available v1.0.1, which should correct this problem:

WIN : http://static.kvraudio.com/files/4268/fkfx_influx_v1_0_1.zip

OSX: http://static.kvraudio.com/files/4268/fkfx_influx_v1_0_1_pkg.zip

In case the problem is still here, please contact us on FKFX.Contact <<||>> gmail.com.


10 July 2021 at 3:32pm

The Dry/Wet control only adds wet signal to the dry. It doesn't mix between the two. Is that the intended behaviour? (Running on Mac/Logic).

10 July 2021 at 4:00pm

Yes, the Dry/Wet knob is actually "Dry/Wet Max" as written, it will only adjust the final dry/wet, which is the is the curve itself (on which you can turn off all dry with "wet only" button).

10 July 2021 at 5:23pm

OK, thanks for the info.

street spirit
street spirit
22 September 2021 at 1:54am

Cool concept, but just un usable in Ableton 10.

29 September 2021 at 3:40pm

Hi I hope someone can help, .

I've downloaded the plugin and loaded it up in my DAW, however it has no effect on any sound and is not working. Thanks, Ruben.

16 October 2021 at 6:13am

I can't get Maschine to recognize it. I see the dll file in my VST folder but it won't show up. This sounds amazing and I really wanna try it out.

18 October 2021 at 8:29am

Please send us a message at fkfx.contact -at - gmail.com, so we can help .

Also a common mistake is to try the plugin without play active, because it needs sync infos .

1 November 2021 at 6:59pm

Just downloaded this plugin and the first impression is wonderful. I use Glitchmachines a lot for this kind of effects but in Influx they are just smoother. Thanks for the good work.

12 January 2023 at 6:42pm

get your updated plugins here: https://fkfx.fr/download/

the link at the top of the article is to the KVRDC 2021 repo.

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