NINEFX · VST3 for Windows & macOS

Intelligently designed Mastering plugins

Five plugins made while finishing house and techno records: a compressor, a saturator, a clipper, a true-peak limiter and an analyzer. Every one of them is free.

Get club-loud masters with punchy kicks and a safe true-peak ceiling, then check your LUFS before you export. Free VST3 for FL Studio, Ableton Live and any VST3 host on Windows and macOS.

  • 5 plugins · Free
  • VST3 · AU
  • Windows & macOS
  • FL Studio
  • Ableton Live
  • Logic Pro (AU)
  • Cubase
  • Studio One
  • Reaper
  • Bitwig
  • Any VST3 host

The plugins

Shape, saturate, shave, limit, measure. Use one or run the whole chain.

COMP-IX by NINEFX compressor plugin interface

Compressor

COMP-IX

Fast BASIC compression, plus an ADVANCED view with sidechain, detector, stereo and tone controls.

FREE

View

CLIP-IX clean clipper VST3 interface with clip display and CLIP amount readout

Clean clipper

CLIP-IX

A fixed 0 dBFS hard clip that shaves peak tops and keeps the hit.

FREE

View

LIMIT-IX true peak limiter VST3 interface with LUFS meters

True peak limiter

LIMIT-IX

Dual-stage mastering limiter for house and techno, true-peak safe.

FREE

View

SAT-IX saturation and harmonics VST3 in ADVANCED view with harmonics display

Saturation & harmonics

SAT-IX

Two drive stages for grit and warmth, level-matched, with a live harmonics display.

FREE

View

NEO-IX LUFS meter and spectrum analyzer VST3 interface

Analyzer & meters

NEO-IX

Spectrum, reference curves and loudness meters that never touch your audio.

FREE

View


Mastering chain for House & Techno

COMP-IX → SAT-IX → CLIP-IX → LIMIT-IX → NEO-IX on your master bus, in three steps.

01 · Punch

Glue, then shave the kick

COMP-IX sets the punch and glue at zero latency. SAT-IX adds grit and warmth at a matched level. CLIP-IX then shaves the sharpest peak tops with a clean hard clip at 0 dBFS and keeps the hit.

02 · Loud + safe

Limit to club loudness

LIMIT-IX brings the master up to your target. Its shaper takes the short peak tops while held bass stays clean, and the true-peak ceiling keeps inter-sample peaks under control.

03 · Check

Read LUFS and true peak

NEO-IX goes last, after the limiter. Check integrated LUFS, true peak and the spectrum against house and techno guides before you bounce.


FAQ

What are the best free mastering plugins for house and techno?

The free IX Bundle is a complete mastering chain made while finishing house and techno records: COMP-IX for punch and glue, SAT-IX for saturation and harmonics, CLIP-IX to shave kick peaks, LIMIT-IX, a true-peak limiter designed primarily for house and techno, and NEO-IX to check LUFS, true peak and spectrum against genre placement guides.

How loud should a techno or house master be?

Club masters often sit around -6 to -5 LUFS integrated with a -1 to -0.1 dBTP ceiling. Streaming services normalise loudness, so a -1 dBTP ceiling is the safest choice for streaming releases.

Are the IX plugins really free?

Yes. COMP-IX, CLIP-IX, LIMIT-IX, SAT-IX, NEO-IX and the IX Bundle are all free to download and use. No account, no licence key.

Do these plugins work in FL Studio, Ableton Live and other DAWs?

Yes. They are VST3 effects that work in any VST3 host on Windows 10/11 64-bit and macOS (VST3 and AU), including FL Studio, Ableton Live, Cubase, Studio One and Reaper.

IX Bundle

All five in one download

One installer, five plugins: COMP-IX, SAT-IX, CLIP-IX, LIMIT-IX and NEO-IX. No account, no licence key.

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

All IX Plugins in one place

All Plugins

Six free IX downloads: five plugins and the bundle. Each installer drops a VST3 into the standard folder and works in any VST3 host on Windows 10 or 11.

NEO-IX analyzer interface COMP-IX compressor interface CLIP-IX clipper interface LIMIT-IX limiter interface SAT-IX saturation interface MAST-IX mastering interface POD-IX audio enhancer interface

LIMIT-IX

True peak limiter

NEO-IX LUFS meter and spectrum analyzer VST3 interface

Analyzer & meters

NEO-IX by NINEFX

See your mix: spectrum, reference curves, loudness and true-peak readouts.

FREE

ViewWindowsMac

COMP-IX by NINEFX compressor plugin interface

Compressor

COMP-IX by NINEFX

BASIC and ADVANCED views: musical compression or pro sidechain and stereo control, zero latency by default.

FREE

ViewWindowsMac

CLIP-IX clean clipper VST3 interface with clip display and CLIP amount readout

Clean clipper

CLIP-IX by NINEFX

Single-band hard clipper with a fixed 0 dBFS ceiling.

FREE

ViewWindowsMac

LIMIT-IX true peak limiter VST3 interface with LUFS meters

True peak limiter

LIMIT-IX by NINEFX

Dual-stage true-peak mastering limiter for house and techno.

FREE

ViewWindowsMac

SAT-IX saturation and harmonics VST3 in ADVANCED view with harmonics display

Saturation & harmonics

SAT-IX by NINEFX

Saturation and harmonic enhancer: odd-leaning grit, even-leaning warmth, DENSITY and AUTO GAIN.

FREE

ViewWindowsMac

IX Bundle by NINEFX splash art showing the COMP-IX, SAT-IX, CLIP-IX, LIMIT-IX and NEO-IX mastering plugins

All five plugins

IX Bundle by NINEFX

One installer, five plugins: NEO-IX, COMP-IX, CLIP-IX, LIMIT-IX and SAT-IX.

FREE

ViewWindowsMac

POD-IX by NINEFX audio enhancer interface after enhancing a voice recording

Podcast audio enhancer

POD-IX by NINEFX

One click turns a raw voice recording into a clean, broadcast-ready file. VST3 and standalone app.

  • Coming soon

View

MAST-IX by NINEFX one-click mastering plugin interface

One-click mastering

MAST-IX by NINEFX

Listens to your whole track, then masters it in one click. VST3, AU and standalone app.

  • Coming soon

View

Analyzer & meters · v1.0.0

NEO-IX LUFS meter & spectrum analyzer for House & Techno mixes

See your mix. Trust your master.

A free LUFS meter and spectrum analyzer VST3 for mixing and mastering house and techno: reference curves, loudness meters and scopes. NEO-IX never changes your audio: the output is the input, bit for bit.

  • VST3 · AU · Windows & macOS
NEO-IX LUFS meter and spectrum analyzer VST3 full interface with spectrum, reference curve and loudness meters

LUFS meter & analyzer features

  1. Spectrum + reference

    Put your mix next to the genre

    A big spectrum analyzer with reference curves shows where your low end and top sit. Genre placement guides cover Melodic Techno, Afro House, Progressive House, Tech House and Techno.

    NEO-IX spectrum analyzer display comparing a mix with a genre reference curve
  2. Loudness + scopes

    Read what you will export

    True-peak L/R, mid and side bars, integrated LUFS, PLR and correlation, with loudness target and true-peak ceiling readouts. Put it last on the master, after your limiter, and the numbers match the bounce.

    NEO-IX loudness meters: true peak, mid, side, integrated LUFS, PLR and correlation
  3. Listen on Phone

    Check the mix on your phone

    Stream NEO-IX's output to your phone's browser over Wi-Fi: scan the QR code, tap to start. No app needed. Delay is about 0.1–0.2 s, so it is a listening check, not timing-critical monitoring.

  4. Views + presets

    Full or simple

    Switch between FULL and SIMPLE views. Start from 6 factory presets and save your own. Left-click PHONE for a phone-speaker simulation, the only thing that ever alters what you hear.


Controls & specs

ControlRangeWhat it does
VIEWFULL / SIMPLEShows every panel, or a stripped-back view.
PRESETS6 factory + userRecall a setup or save your own.
GENRE GUIDE5 genresPlacement guides for Melodic Techno, Afro House, Progressive House, Tech House and Techno.
PHONE (left-click)On / OffPhone-speaker simulation; changes what you hear only while lit.
PHONE (right-click)Port 8090+Opens Listen on Phone; SWITCH ON starts the stream, which never starts by itself.
JITTER BUFFER60–150 msSet on the phone page to trade delay for stability.

Compatibility

  • Windows 10 or 11, 64-bit
  • VST3 effect
  • Works in FL Studio, Ableton Live, Cubase, Studio One, Reaper and any VST3 host
  • No extra runtimes: no Visual C++ redistributable or MinGW DLLs

Install

  1. Run NEO-IX by NINEFX.exe.
  2. It installs the NEO-IX.vst3 folder to C:\Program Files\Common Files\VST3 (admin permission needed).
  3. Rescan plugins in your DAW and put NEO-IX last on the Master track, after your limiter.

Pricing

NEO-IX v1.0.0

FREE

  • NEO-IX VST3 64-bit installer
  • FULL and SIMPLE views
  • 6 factory presets plus your own
  • 5 genre placement guides
  • Listen on Phone over Wi-Fi

Free for WindowsFree for Mac

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU


FAQ

Does NEO-IX change my audio?

No. The output is the input, bit for bit. The only exception is the PHONE check button, which alters what you hear only while it is lit.

Where should it go in my chain?

On the Master mixer track, last in the chain after your limiter, so the meters read what you will export.

How much delay does Listen on Phone add?

About 0.1–0.2 s, with a jitter buffer you can set from 60 to 150 ms on the phone page. The stream is plain 16-bit PCM over your local network, unencrypted, so only use it on networks you trust.

My phone cannot connect. What now?

Put both devices on the same Wi-Fi (not a guest network or mobile data), allow your DAW on Private networks in Windows Firewall, and turn off AP / client isolation on the router. On iPhone, switch off silent mode.

Where are presets, and how do I uninstall?

Presets live in %APPDATA%\NINEFX\NEO-IX\Presets. To uninstall, delete C:\Program Files\Common Files\VST3\NEO-IX.vst3 and rescan in your DAW.

See your mix.

NEO-IX v1.0.0 is a free LUFS meter and analyzer. Install it, drop it on the master, read the truth.

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

Compressor · v2.0.0

COMP-IX Compressor for mixing and mastering House & Techno

Shape the punch. See every hit.

COMP-IX v2 has two faces. BASIC is the fast, musical compressor you know, with a scrolling in/out waveform, peak and gain-reduction meters, DELTA and 10 factory presets. Switch to ADVANCED for pro sidechain, detector, stereo and tone controls built for mastering and bus work in House and Techno. BASIC sounds exactly like v1, so old projects and presets load the same.

  • VST3 · AU · Windows & macOS
COMP-IX by NINEFX compressor plugin interface
ADVANCED view
COMP-IX by NINEFX compressor plugin interface, BASIC view
BASIC view

What's new in v2.0.0

  • BASIC | ADVANCED switch in the top bar
  • Sidechain HPF 20–300 Hz (6/12/24 dB/oct), SC PRESENCE shelf and SC LISTEN
  • External sidechain input
  • PEAK or PEAK+RMS detector with RMS release
  • AUTO attack and release
  • Stereo LINK 0–100% and Mid/Side mode
  • Low-end ratio: compress the lows less
  • Variable KNEE 0–12 dB and GR LIMIT
  • COLOR: DIGITAL (transparent) or ANALOG saturation
  • QUALITY: zero latency, 2x or 4x oversampling
  • AUTO GAIN and ADV BYPASS for fair A/B checks

Compressor features

  1. Scrolling display

    Watch the compression happen

    Grey is the input, neon green the output, and the peach line from the top is gain reduction. Drag the dashed threshold lines right on the display, and set the window from 1 to 16 s to see single hits or whole phrases.

    COMP-IX compressor scrolling input and output waveform with threshold line and gain reduction curve
  2. DELTA listen

    DELTA: hear what it takes

    Click DELTA to hear only what the compressor removes. No compression means silence, make-up GAIN does not change it, and switching crossfades over 10 ms with no clicks.

    COMP-IX compressor knob row: input, threshold, ratio, attack, release, gain, mix, output and DELTA
  3. Levels

    In, GR, out at a glance

    Input and output peak meters (L R) with peak hold, plus a gain reduction meter. Click the meter panel to reset the held readouts.

    COMP-IX compressor input, gain reduction and output peak meters
  4. Zero latency

    Parallel, perfectly aligned

    With no latency, the MIX knob blends dry and compressed signal sample-aligned, from 0 % (untouched) to 100 %.

  5. Presets + window

    10 factory presets

    Save your own as .cmpix files. Resize the window from 630×364 up to 1800×1040; it keeps its proportions.


Controls & specs

ControlRangeWhat it does
INPUT-24 to +24 dBDrive into the compressor.
THRESHOLD-60 to 0 dBWhere compression starts; also draggable on the display.
RATIO1:1 to 20:1How hard it compresses above threshold.
ATTACK0.1 to 200 msHow fast it grabs.
RELEASE5 to 2000 msHow fast it lets go.
GAIN0 to +24 dBMake-up gain on the compressed signal.
MIX0 to 100 %Parallel dry/wet; 0 % is the untouched dry signal.
OUTPUT-24 to +24 dBFinal level.
BYPASSOn / Off10 ms soft crossfade, then bit-exact pass-through; also the host bypass.
DELTAOn / OffListen only to what the compressor removes.
WINDOW1, 2, 4, 8, 16 sHow much time the display shows; 4 s by default.

Ctrl-drag for fine moves · double-click to reset · all controls automatable

Compatibility

  • Windows 10 or 11, 64-bit
  • VST3 effect
  • Zero latency by default; 2x oversampling adds 49 samples, 4x adds 61
  • v2.0.0 replaces v1 in your DAW
  • Works in FL Studio, Ableton Live, Cubase, Studio One, Reaper and any VST3 host
  • No extra runtimes: no Visual C++ redistributable or MinGW DLLs

Install

  1. Run COMP-IX by NINEFX.exe.
  2. It installs the COMP-IX.vst3 folder to C:\Program Files\Common Files\VST3 (admin permission needed).
  3. Rescan plugins in your DAW and load COMP-IX on any insert: drums, bus, vocal, master.

Pricing

COMP-IX v2.0.0

FREE

  • COMP-IX VST3 64-bit installer
  • BASIC and ADVANCED views
  • 10 factory presets plus your own
  • DELTA listen and parallel MIX
  • Resizable window, 630×364 to 1800×1040

Free for WindowsFree for Mac

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU


FAQ

Does COMP-IX add latency?

Not by default. QUALITY starts at zero latency, so the parallel MIX is perfectly sample-aligned, and it stays zero with DELTA on. 2x oversampling adds 49 samples and 4x adds 61.

What exactly does DELTA play?

The signal entering the compressor (after INPUT) minus the compressed signal (before make-up GAIN): purely the gain reduction. MIX is ignored while DELTA is on, OUTPUT still applies, and BYPASS overrides it.

Is DELTA saved in presets?

No. DELTA is automatable and saved with the project, but not part of presets.

Where are my presets?

SAVE writes .cmpix files to %APPDATA%\NINEFX\COMP-IX\Presets. Click the preset name for the full list and "Open presets folder".

How do I uninstall?

Delete C:\Program Files\Common Files\VST3\COMP-IX.vst3 and rescan in your DAW. Delete %APPDATA%\NINEFX\COMP-IX too if you want your presets gone.

Shape the punch.

COMP-IX v2.0.0 is a free compressor VST3. BASIC for speed, ADVANCED for mastering and bus work, DELTA listen.

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

Clean clipper · v1.0.1

CLIP-IX Clean clipper for punchy House & Techno kicks and masters

Shave peaks. Keep the hit.

A free, clean hard clipper VST3 for house and techno kicks, drum buses and masters, with a big scrolling clip display. One band, one CLEAN mode, and a ceiling fixed at 0 dBFS that the output can never pass.

  • VST3 · AU · Windows & macOS
CLIP-IX clean clipper VST3 full interface with scrolling clip display, CLIP readout and meters

Clipper features

  1. Clip display

    Green stays. Red goes.

    A scrolling waveform of the signal going in, on a scale from silence in the centre to +12 dB at the edges. Dashed lines mark the 0 dBFS ceiling: green stays under it, red is what gets clipped off.

    CLIP-IX clipper scrolling waveform: green under the 0 dBFS line, red clipped peaks above it
  2. Clip amount

    Know exactly how much you cut

    The big CLIP readout shows how many dB the clipper is shaving, holding the highest value of roughly the last second. A 0 dBFS sine with INPUT +6 dB reads CLIP -6.0 dB; green 0.0 dB means nothing is clipped.

    CLIP-IX clipper controls: input, link, delta, output, clip amount readout and oversampling
  3. Levels

    In, clip, out

    Input and output peak meters (L R) with peak hold and dBFS readouts, plus a CLIP meter from 0 to 12 dB. Click the panel to reset the held readouts.

    CLIP-IX clipper input, clip and output peak meters
  4. Signal flow

    The ceiling always holds

    INPUT → hard clip at 0 dBFS (2x/4x oversampled if chosen) → OUTPUT → re-clip at 0 dBFS. Pushing OUTPUT above 0 dB just clips harder, like more drive.

  5. Presets + window

    Save your settings

    Presets store Input, Output, Link and Oversampling. The window resizes from 630×364 up to 1800×1040 and keeps its proportions.


Controls & specs

ControlRangeWhat it does
INPUTdB gainDrive into the clipper; more input means more clipping.
OUTPUTdB gainLevel after the clip, re-clipped at 0 dBFS. Below 0 dB leaves headroom.
LINKOn / OffUse with OUTPUT for level-matched listening.
OVERSAMPLING2x / 4xOversamples the clip stage; changes latency, so set it once.
MODECLEAN (fixed)Symmetrical hard clip.
CEILING0.0 dBFS (fixed)The output can never go above it.
WINDOW1, 2, 4, 8, 16 sHow much time the display shows; 4 s by default.

Ctrl-drag for fine moves · double-click to reset · all controls automatable

Compatibility

  • Windows 10 or 11, 64-bit
  • VST3 effect
  • Works in FL Studio, Ableton Live, Cubase, Studio One, Reaper and any VST3 host
  • No extra runtimes: no Visual C++ redistributable or MinGW DLLs

Install

  1. Run CLIP-IX by NINEFX.exe.
  2. It installs the CLIP-IX.vst3 folder to C:\Program Files\Common Files\VST3 (admin permission needed).
  3. Rescan plugins in your DAW and load CLIP-IX on any insert: kick, drum bus, 808, master.

Pricing

CLIP-IX v1.0.1

FREE

  • CLIP-IX VST3 64-bit installer
  • CLEAN hard clip with fixed 0 dBFS ceiling
  • 2x / 4x oversampling
  • User presets and a resizable window

Free for WindowsFree for Mac

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU


FAQ

Does oversampling add latency?

Yes, changing OVERSAMPLING changes the latency, so it is best set once rather than automated.

Why doesn't turning OUTPUT up make it louder?

The signal is re-clipped at 0 dBFS after OUTPUT, so the ceiling always holds. Above 0 dB, OUTPUT just clips harder, like more drive. Use it below 0 dB for headroom.

What does the CLIP readout measure?

How far the signal after INPUT peaks above 0 dBFS: how many dB are being cut off. It holds the highest value of roughly the last second.

Where are my presets?

SAVE writes .clpix files to %APPDATA%\NINEFX\CLIP-IX\Presets. They store Input, Output, Link and Oversampling.

How do I uninstall?

Delete C:\Program Files\Common Files\VST3\CLIP-IX.vst3 and rescan in your DAW. Delete %APPDATA%\NINEFX\CLIP-IX too if you want your presets gone.

Shave peaks. Keep the hit.

CLIP-IX v1.0.1 is a free clipper VST3. One knob of drive, one fixed ceiling.

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

True peak limiter · v2.0.0

LIMIT-IX True peak limiter for House & Techno mastering

Club loud. True-peak safe.

A free true-peak limiter VST3 designed for mastering house and techno. A clean lookahead limiter works with a wave-shaping stage that takes only the short peak tops, while held bass notes stay clean.

  • VST3 · AU · Windows & macOS
LIMIT-IX v2 true peak limiter VST3 full interface with waveform display, controls and LUFS meters

Limiter features

  1. Dual-stage engine

    Two stages, one ceiling

    The display splits the work: peach is clean-stage gain reduction, gold is shaper reduction, green the output under a dashed ceiling. Kick and snare tips go to the shaper; sub notes and pads stay with the clean limiter.

    LIMIT-IX limiter scrolling waveform with gain reduction and shaper overlay
  2. Hardness + mode

    Dial in the density

    HARDNESS 0 is clean limiting only, 3–6 a soft saturating knee, 7–9 harder up to clipping. Versatile mode allows up to 9 dB of shaping; Loud allows 12 dB with faster recovery for denser, flatter transients.

    LIMIT-IX limiter knob row: gain, hardness, output, lookahead, envelope, release, channel link, true peak, mode, oversampling
  3. Levels

    Hit your number

    True peak max, SHAPE MAX, GR MAX, and integrated, short-term and momentary LUFS with PLR. Raise GAIN until INTEGRATED reads your target while watching the reduction.

    LIMIT-IX LUFS and true peak meters: true peak, shape max, GR max, integrated LUFS, PLR, 1:1 offset
  4. 1:1 + DELTA

    Judge sound, not volume

    1:1 plays the limited sound at the input's loudness. DELTA plays only what the whole chain removes: quiet clicks on kicks are fine, audible bass or crunch means back off GAIN. Both are for monitoring; turn them off before export.

  5. Recovery

    Punch without pumping

    AUTO brings kick and hat punch back fast while holding dense bass steady. INSTANT gives maximizer-style recovery, with a 16 ms bass-hold window that keeps low notes free of gain ripple.


Controls & specs

ControlRangeWhat it does
GAIN0 to +30 dBDrive into the limiter: your loudness knob.
HARDNESS0 to 9How much peak work the shaper takes and how hard its knee is.
MODEVersatile / LoudUp to 9 dB or 12 dB of shaping at Hardness 9.
OUTPUT-12 to 0 dBTPThe true-peak ceiling; peaks never go above it.
LOOKAHEAD0 to 10 msLonger is smoother bass, shorter more bite; 0 ms adds no lookahead latency.
ENVELOPE1 to 8Release curve shape: 1 is natural and loudest, higher holds then recovers faster.
RELEASE1 to 1000 msRecovery time of the clean stage.
AUTOOn / OffAdaptive two-stage recovery; off uses one fixed RELEASE.
INSTANTOn / OffMaximizer-style recovery; overrides AUTO and RELEASE.
CH LINK0 to 100 %100 % is the same gain on L and R for a stable image.
TRUE PEAKOn / OffCeiling applies to inter-sample peaks; keep it on for masters.
OVERSAMPLINGOff / 2x / 4x / 8xCleaner peaks and less shaper aliasing; 8x for the final render if CPU allows.
1:1On / OffLoudness-matched monitoring. Off before export.
DELTAOn / OffHear only what the chain removes. Off before export.
BYPASSOn / Off10 ms crossfade to the latency-aligned input; also the host bypass.

Ctrl-drag for fine moves · double-click to reset · all controls automatable

Compatibility

  • Windows 10 or 11, 64-bit
  • VST3 effect
  • Works in FL Studio, Ableton Live, Cubase, Studio One, Reaper and any VST3 host
  • No extra runtimes: no Visual C++ redistributable or MinGW DLLs

Install

  1. Run LIMIT-IX by NINEFX.exe.
  2. It installs the LIMIT-IX.vst3 folder to C:\Program Files\Common Files\VST3 (admin permission needed).
  3. Rescan plugins in your DAW and load LIMIT-IX on your master or any insert.

Pricing

LIMIT-IX v2.0.0

FREE

  • LIMIT-IX VST3 64-bit installer
  • Dual-stage engine: clean limiter + shaper
  • ITU BS.1770 true-peak ceiling, up to 8x oversampling
  • Presets including "Melodic Techno Loud" and "House Groove"
  • 1:1 and DELTA monitoring

Free for WindowsFree for Mac

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU


FAQ

How much latency does it add?

It depends on LOOKAHEAD (0 to 10 ms; 0 ms means no lookahead latency, and the ceiling still holds) and on TRUE PEAK, which adds slightly more latency when on. BYPASS crossfades to the latency-aligned input.

Which OUTPUT ceiling should I use?

-1.0 dBTP for streaming; -0.3 dBTP is fine for club and DJ WAV masters. Keep TRUE PEAK on for masters.

What do 1:1 and DELTA do?

1:1 plays the limited sound at the same loudness as the input, so you judge sound, not volume. DELTA plays only what the shaper, clean limiter and true-peak safety remove. Both are monitoring only: before export, set 1:1 OFF, DELTA OFF, BYPASS OFF.

Where are my presets?

SAVE writes a user preset to %APPDATA%\NINEFX\LIMIT-IX\Presets. Click the preset name for the full list and "Open presets folder".

How do I uninstall?

Delete C:\Program Files\Common Files\VST3\LIMIT-IX.vst3 and rescan in your DAW. Delete %APPDATA%\NINEFX\LIMIT-IX too if you want your presets gone.

Club loud. True-peak safe.

LIMIT-IX v2.0.0 is a free true peak limiter. The last plugin on your master before NEO-IX.

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

Saturator · v1.0.1

SAT-IX by NINEFX · Saturation & harmonic enhancer for House & Techno

Saturation & harmonics

SAT-IX is a saturation and harmonic enhancer with two original drive stages in series between input and output transformer models. DRIVE A adds grit with odd-leaning harmonics, DRIVE B adds warmth with even-leaning harmonics, and DENSITY pushes both harder while keeping your level. A live harmonics display shows exactly what's being added. Built for House and Techno, from subtle glue on the master to heavy drive on drums and bass.

  • VST3 · AU · Windows & macOS
SAT-IX v1.0.1 saturation VST3 in ADVANCED view: harmonics display, drive controls and the parallel sat, iron, sub guard, punch and stereo panel
ADVANCED view
SAT-IX v1.0.1 saturation VST3 in BASIC view: harmonics display, meters and knob row
BASIC view

Saturation features

  1. Two drive stages

    Grit, warmth, density

    DRIVE A for odd-leaning grit, DRIVE B for even-leaning warmth, in series between input and output transformer models. DENSITY pushes both harder at the same level.

  2. Harmonics display

    See what's added

    A live display shows the harmonics SAT-IX adds, with in / SAT / out meters beside it.

  3. Fair A/B

    AUTO GAIN and DELTA

    AUTO GAIN keeps the output level-matched, so you judge tone, not volume. DELTA plays only what's added.

  4. Parallel sat

    Smooth or Hot

    Blend in a parallel saturation voice, Smooth or Hot, focused on the Low, Mid or High band, with its own amount.

  5. Sub guard

    Keep the sub clean

    SUB GUARD keeps the low end clean: after saturation it restores your original signal below SG FREQ (30-150 Hz), in Low Latency or Linear Phase mode.

  6. Punch + iron

    Transients stay sharp

    PUNCH protects transients from the drive. IRON adds transformer character.

  7. Stereo

    Stereo, Mid, Side, M+S

    Saturate the whole signal, only the Mid, only the Side, or both separately. ADV BYPASS switches the ADVANCED panel off for an A/B.

  8. Presets

    10 factory presets

    From Techno Drive to Velvet Reel Warmth: start points for masters, drums and bass.


Controls & specs

BASIC view
ControlOptionsWhat it does
INPUTLevelDrive into the saturation stages.
DRIVE AAmountGrit with odd-leaning harmonics.
DRIVE BAmountWarmth with even-leaning harmonics.
DENSITYAmountPushes both drives harder while keeping your level.
TONEDark / Normal / BrightOverall tilt of the saturated sound.
AIRAmountTop-end air.
MIXDry / wetBlend of dry and saturated signal.
OUTPUTLevelFinal level.
AUTO GAINOn / OffKeeps the output level-matched.
QUALITYNormal / HQ 2x / Ultra 4xOversampling.
DELTAOn / OffHear only what's added.
BYPASSOn / OffPass the signal through untouched.
ADVANCED panel
ControlOptionsWhat it does
PARALLEL SATSmooth / Hot · Low / Mid / High · amountA parallel saturation voice with its own focus band.
IRONAmountTransformer character.
SUB GUARDLow Latency / Linear Phase · SG FREQ 30-150 HzAfter saturation, restores your original signal below SG FREQ.
PUNCHAmountProtects transients.
STEREOStereo / Mid / Side / M+SWhere the saturation is applied.
ADV BYPASSOn / OffSwitches the ADVANCED panel off.

Compatibility

  • Windows 64-bit
  • VST3 effect
  • Latency: 0 at Normal, 49 samples at HQ 2x, 61 at Ultra 4x; linear-phase SUB GUARD adds more
  • Light on CPU

What's new in 1.0.1

SUB GUARD now works as the last stage of the chain, so everything below SG FREQ stays your clean signal and no generated harmonics reach the sub. LOW LAT mode uses a much steeper crossover for a cleaner split.


Pricing

SAT-IX v1.0.1

FREE

  • SAT-IX VST3 64-bit installer
  • BASIC and ADVANCED views
  • Live harmonics display, in / SAT / out meters
  • 10 factory presets
  • AUTO GAIN and DELTA

Free for WindowsFree for Mac

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU


FAQ

Does it add latency?

None at Normal QUALITY. HQ 2x adds 49 samples and Ultra 4x adds 61. The linear-phase SUB GUARD split adds more.

Will it change my loudness?

Not with AUTO GAIN on: it keeps the output level matched, so you hear the saturation, not a volume jump.

Grit. Warmth. Density.

SAT-IX v1.0.1 is a free saturation and harmonics VST3, from subtle glue on the master to heavy drive on drums and bass.

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

Podcasts & spoken word · v1.3.0 · Coming soon

POD-IX by NINEFX

Intelligent Professional Audio Enhancer

One click turns a raw voice recording into a clean, even, broadcast-ready file. Drop your recording in, pick an output level, hit Enhance Audio, then drag the result straight into your DAW.

Coming soon

Launching soon. Follow @ninefxmusic on Instagram to hear first.

  • VST3 + standalone · Windows 64-bit
POD-IX by NINEFX interface after enhancing a voice recording

Two ways to use it

Both for Windows 64-bit.

In your DAW

POD-IX VST3

For any VST3 host: FL Studio, Ableton Live, Reaper, Cubase, Studio One, Bitwig.

No DAW needed

POD-IX.exe standalone

The same engine as a standalone app, with Export Audio to save the enhanced file.

POD-IX standalone app after exporting enhanced audio with Export Audio

Standalone app

Enhance, then Export Audio

Open POD-IX.exe, drop in your recording, enhance it and export a 24-bit WAV. No DAW required.


How it works

POD-IX after enhancing a voice recording
POD-IX plugin ready to enhance, with output level and quality options
BeforeAfter
  1. Drag your recording in. WAV, AIFF, FLAC, MP3 or OGG.
  2. Choose target output level. 0 dB, -3 dB or -6 dB (true-peak ceilings).
  3. Choose Quality. Normal, HQ or Ultra.
  4. Click Enhance Audio. It processes the whole file far faster than real time.
  5. Drag into your DAW, or Export Audio in the app.

What it does

In processing order.

  1. 70 Hz

    Rumble high-pass

    Removes low rumble and handling noise below the voice.

  2. New in 1.2.0 · Mono below 120 Hz

    Stereo Fix

    Re-centres a voice that sits off to one side: a louder, weaker, silent or out-of-phase channel. Mono and centred files pass untouched.

  3. Levelling

    Speech levelling

    Evens out loud and quiet talkers.

  4. Two-pass

    Noise reduction

    Learns the noise from every pause, with a natural low residual floor and no "musical noise".

  5. Dynamics

    Voice compression

    Program-dependent release.

  6. Whole-file analysis

    Smart gate

    Planned from the whole file, so it never clips word starts or soft endings.

  7. New in 1.2.0 · About 1 dB

    Transient clipper

    A clean soft clipper shaves the loudest peaks, like plosives and laughs, so the voice is louder at the same peak level.

  8. New in 1.2.0 · Level-matched

    Tube brightness

    A gentle tube-style stage adds presence and air, about 10% brighter.

  9. 0 / -3 / -6 dB

    True-peak limiter

    Holds the output to your chosen ceiling.


Specs

  • No file length limit (files over 4 GB written as RF64 WAV)
  • 24-bit WAV output
  • Preview Original vs Enhanced
  • Live insert mode with about 34 ms latency
  • Original NINEFX DSP, no AI models

What's new in 1.3.0

  • 2-day full-feature free trial from first launch
  • Activate with your license key right inside the plugin or standalone app
  • One license works on 2 computers; move it anytime with Deactivate
  • Plugin and standalone share one activation

Added in 1.2.0

  • Stereo Fix: recordings with the voice off to one side are fixed automatically. If one channel is louder, weaker, silent or out of phase, POD-IX re-centres the voice. Everything below 120 Hz is made mono for a tight, centred low end. Mono and already-centred recordings pass through untouched.
  • Transient clipper: a clean soft clipper before the limiter shaves about 1 dB off the loudest peaks (plosives, laughs), so the voice comes out louder at the same peak level, without audible distortion.
  • Tube brightness: a gentle tube-style stage adds presence and air, about 10% brighter, level-matched.

POD-IX v1.3.0

Broadcast-ready voice in one click

Coming soon

Launching soon. Follow @ninefxmusic on Instagram to hear first.

Mastering · v1.1.0 · Coming soon

MAST-IX by NINEFX

One-click mastering.

MAST-IX listens to your whole track, then masters it in one click. One fixed gain, learned from the whole song, lands the loudest sections around -7 LUFS short-term without pumping.

Coming soon

Launching soon. Follow @ninefxmusic on Instagram to hear first.

  • VST3 + Standalone · Windows
  • VST3 + AU + Standalone · macOS
MAST-IX by NINEFX one-click mastering plugin interface

How it works

Four stages, in processing order.

Input stage

CLIP-IX

Catches the first peaks before the chain.

Glue

COMP-IX

Glue compression that holds the mix together.

Clipping

CLIP-IX

Shaves the peaks for loudness.

True peak

LIMIT-IX

True-peak limiting to your chosen ceiling.


What it does

  1. One click

    Master button

    A big Master button does the whole job.

  2. -0.1 / -0.3 / -1 dBTP

    True-peak ceilings

    Pick the ceiling your release needs.

  3. x2 / x4 / x8 / x16

    Oversampling

    Up to 16 times for the cleanest result.

  4. Metering

    LUFS panel

    Integrated, short-term and true peak.

  5. Live

    Spectrum

    A live spectrum of the master.

  6. A/B

    Before / after preview

    Hear the original against the master.

  7. Import & export

    File in, master out

    Import a file and export the master, or drag the result straight into your DAW.


Specs

  • Windows: VST3 + Standalone
  • macOS: VST3 + AU + Standalone
  • 2-day full-feature trial, then a license key (2 computers)
  • Separate paid plugin, not part of the IX Bundle

MAST-IX v1.1.0

One-click mastering

Coming soon

Launching soon. Follow @ninefxmusic on Instagram to hear first.

v1.1.0 · 5 plugins · one download

IX Bundle by NINEFX

Mix to master. One chain.

One installer, five plugins: COMP-IX, SAT-IX, CLIP-IX, LIMIT-IX and NEO-IX. Shape the punch, add harmonics, shave the peaks, hit your loudness, then check it. Free.

  • VST3 · AU · Windows & macOS
IX Bundle by NINEFX: free mastering plugin bundle with COMP-IX, SAT-IX, CLIP-IX, LIMIT-IX and NEO-IX interfaces

The chain

In signal order on your master.

COMP-IX by NINEFX compressor plugin interface

01 · Shape

COMP-IX

Zero-latency compression to set the punch and glue.

View COMP-IX

SAT-IX saturation VST3 in ADVANCED view, step two of the IX mastering chain

02 · Saturate

SAT-IX

Grit, warmth and density, level-matched, with the sub kept clean.

View SAT-IX

CLIP-IX clean clipper VST3 interface, step three of the IX mastering chain

03 · Shave peaks

CLIP-IX

Hard clip at 0 dBFS to take the sharpest tips off.

View CLIP-IX

LIMIT-IX true peak limiter VST3 interface with LUFS meters, step four of the IX mastering chain

04 · Final loudness

LIMIT-IX

True-peak limiting to your target, with the ceiling held.

View LIMIT-IX

NEO-IX LUFS meter and spectrum analyzer VST3 interface, last in the IX mastering chain

05 · Analyze & meter

NEO-IX

Last on the master: spectrum and loudness of what you export.

View NEO-IX

IX Bundle v1.1.0 · 5 plugins

FREE

Free for WindowsFree for Mac

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

What's included

  • NEO-IX v1.0.0: analyzer, reference curves, loudness meters, Listen on Phone
  • COMP-IX v2.0.0: compressor with BASIC and ADVANCED views, 10 factory presets, DELTA
  • CLIP-IX v1.0.1: clean clipper, 0 dBFS ceiling, 2x/4x oversampling
  • LIMIT-IX v2.0.0: dual-stage true-peak limiter, up to 8x oversampling
  • SAT-IX v1.0.1: saturation and harmonics, two drive stages, SUB GUARD, 10 factory presets

Compatibility

  • Windows 10 or 11, 64-bit
  • VST3 effects
  • Works in FL Studio, Ableton Live, Cubase, Studio One, Reaper and any VST3 host
  • No extra runtimes: no Visual C++ redistributable or MinGW DLLs

Your whole master chain. Free.

One installer, five plugins, every one installed to your VST3 folder.

Windows 10/11 · macOS 10.13+ (Apple Silicon & Intel) · VST3 · AU

NineFX, DJ, producer and maker of the IX plugins, in the studio lit by a green ring light

About

NINEFX

DJ · Producer · Mix & Mastering Engineer


NineFX is a DJ, producer and mixing and mastering engineer with more than 12 years behind the decks and the desk. His sound lives in melodic house & techno, with detours into afro house, indie dance and mainstage. He has shared lineups with W&W, Marnik and Mr. Black, played Sunburn and VH1 Supersonic, and earned support from Hardwell and Silver Panda.

The IX plugins grew out of his own studio: the tools he wanted for finishing club records, built from scratch and shared with fellow producers.

  • 12+ years
  • Releases on Exx Muzik, Frequenza, F.T.F.T. Records
  • #4 Beatport Melodic House & Techno (Athena & Hera)
  • Sunburn · VH1 Supersonic

Contact

Get in touch.

Questions, feedback or bugs: NineFX reads every email.