🔥 Paid

CLEANSIX

Find and tame the harsh resonances that make tracks sound boxy, ringy, or fatiguing — without dulling your tone. Cleansix listens in real time, targets only the problem frequencies, and preserves your transients so drums and vocals stay punchy. Aim it at a focus band or hit Auto-Threshold, and watch your mix's health score climb.

AU · VST3 · CLAP · AAX · Standalone · macOS (Universal Binary)

Cleansix — A surgical-grade dynamic resonance suppressor — plugin interface for Mac and Windows
Buy Try Cleansix Raw — Free All Plugins

INSTALLATION

3 steps.

1

RUN THE INSTALLER

Double-click Cleansix_Installer.pkg. Choose AU, VST3, CLAP, AAX or Standalone.

Signed & notarized by Apple — it installs cleanly, no security warnings, no "Open Anyway."
2

CHOOSE YOUR FORMATS

The installer lets you pick AU (Logic, GarageBand, Ableton), VST3 (Ableton, Reaper, Bitwig, FL Studio), and the Standalone app. Install takes a few seconds.

3

OPEN YOUR DAW

Restart your DAW and rescan plugins if needed. Find Cleansix under Remi Blaze in your plugin list.

  • Ableton: Plugins › Audio Effects › VST3
  • Logic Pro: Audio Effects › Remi Blaze › Cleansix
  • Reaper: FX › VST3 › Cleansix
Security Note: Cleansix is built by Remi Blaze and is signed & notarized by Apple, so it installs cleanly with no security warnings. The plugin is safe to use — no background processes, no network calls, no telemetry.

FEATURES

Detection & Suppression Engine

◆Hybrid detect-then-notch architecture — STFT analysis paired with IIR biquad notches, avoiding the phase smearing of STFT subtraction
◆16 dynamically-assigned TDF2 biquad notches with per-sample coefficient interpolation
◆1024-point FFT, 256-sample hop, Hann window with temporal history smoothing
◆Asymmetric smoothing — 3ms attack to catch resonances fast, 100ms release for transparent fade-out
◆Hysteresis search — resonances must persist ~15ms before a notch activates, preventing chatter
◆Frequency-adaptive Q — notch width scales with frequency to match psychoacoustic bandwidth
◆Transient preservation — 2ms lookahead ducks the notch bank to protect drum and percussive attacks

Targeting & Control

◆Five focus bands — Vocal Harsh, Cymbal Ring, Box, Full Range, and Custom (manual low/high knobs)
◆Two speed modes — Surgical (fast, tight tracking) and Organic (gentler, more musical)
◆Intensity and Max Reduction controls for detection sensitivity and per-notch gain floor
◆Mid/Side processing — process Stereo, Mid only, or Side only
◆Auto-Level for automatic gain compensation, plus Mix, Output trim, and true bypass
◆Quarantine Mode — momentary intensity boost for aggressive spot-treatment while held

Monitoring & Health

◆Delta mode — monitor only the removed signal through a 150Hz–10kHz bandpass ghost filter
◆Fletcher-Munson weighted health scoring with Before/After/Improvement display
◆Status labels from CRITICAL to PRISTINE, infection alert, and a transport-synced clean streak
◆Radar display with sweep line, target dots, zap beams, and BPM-synced Pulse Scan
◆Reduction meter showing total suppression in dB with color coding

Calibration & Enhancement

◆Auto-Threshold — one-click 5-second capture sets the optimal focus band and intensity, then freezes a verified baseline
◆Mojo harmonic enhancer — asymmetric tanh waveshaper adds 2nd/3rd harmonics with oversampling and DC removal, compensating for any sterility
◆Outbreak mode — full-spectrum visualization with a parallel exciter that boosts detected resonances, ISP-safe at -0.3 dBFS
◆Dry-path latency alignment via ring buffer for phase-perfect delta and mix

Presets & Sharing

◆15 factory presets (Sibilance Surgeon, Cymbal Tamer, The Box Cutter, Vocal De-Harsh, Aggressive Fix, and more)
◆A/B comparison and Randomize for creative exploration
◆Diagnosis Seed — share exact settings as a compact hex string with checksum
◆Lab Report — copy a text analysis summary with resonance data and health scores; save/load user presets

Safety & Build

◆Anti-denormal protection, NaN/Inf sweep, soft clipper, and hard output limit on every sample
◆ISP safety limiter, zero-allocation processBlock, and full 20ms parameter smoothing
◆Universal Binary (Intel + Apple Silicon), AU/VST3/CLAP/AAX/Standalone, signed and notarized on macOS, code-signed on Windows

FACTORY PRESETS

Init
Sibilance Surgeon
Cymbal Tamer
The Box Cutter
Remi's Polish
Club-Ready Clarity
Percussion Tamer
Vocal De-Harsh
Vocal De-Box
Gentle Master
Side Cleanup
Aggressive Fix
Ghost in the Hat
The Front Row
Dry Vocal Fix

SYSTEM REQUIREMENTS

  • OS macOS 15.0 (Sequoia) or later · Windows 10 or 11 (64-bit)
  • Architecture Apple Silicon + Intel (Universal Binary) · x64 on Windows
  • Formats macOS: AU, VST3, CLAP, AAX, Standalone. Windows: VST3, CLAP, Standalone
  • DAW Any AU, VST3, CLAP or AAX compatible host

FREQUENTLY ASKED QUESTIONS

Is Cleansix free?

No — Cleansix is a paid plugin, a one-time purchase with no subscription. If you want to try the engine for free first, Cleansix Raw puts the same dynamic resonance cleanup behind a single knob, free.

What does Cleansix actually do?

It's a dynamic resonance suppressor. Real-time STFT analysis detects the harsh, boxy, or ringy peaks in your signal, and a bank of 16 dynamically-assigned biquad notches removes only those problem frequencies — leaving the rest of your tone untouched.

Will it kill my transients or dull the sound?

No. A 2ms lookahead transient detector ducks the notch bank during drum and percussive attacks so punch is preserved, and the optional Mojo harmonic enhancer adds 2nd/3rd-order warmth to compensate for any sterility after cleanup.

What are the Focus Bands and Auto-Threshold for?

Focus Bands aim the detector at a problem area — Vocal Harsh (2–5kHz), Cymbal Ring (5–10kHz), Box (300–800Hz), Full Range, or Custom. Auto-Threshold captures 5 seconds of your source and automatically sets the optimal focus band and intensity, then freezes a verified health baseline.

What is Delta mode?

Delta solos the removed signal so you hear exactly what Cleansix is taking out, monitored through a 150Hz–10kHz bandpass ghost filter. It's the fastest way to confirm you're only removing the harshness and nothing musical.

Does Cleansix run on Apple Silicon and Windows?

Yes. Cleansix is a Universal Binary that runs natively on Apple Silicon (M1/M2/M3/M4) and Intel Macs, available as macOS: AU/VST3/CLAP/AAX/Standalone. Windows: VST3/CLAP/Standalone.

Installation guide is above. Need more help? Visit the support page.

START FREE WITH CLEANSIX RAW

Want to try the engine first? Cleansix Raw puts the resonance-cleanup engine behind a single knob — free.

Cleansix Raw drives the same dynamic STFT notch engine with one CLEAN knob and automatic gain compensation — harsh resonances, boxiness, and ringing scrubbed out, auto-leveled so the track gets clearer, never quieter. When you want focus bands, mid/side, and surgical control, the full Cleansix delivers.

Download Cleansix Raw — Free

MORE PLUGINS

Cleansix is part of a growing collection of tools designed by a producer, for producers. Explore the full lineup or grab the free Raw editions.

View All Plugins Free Raw Series

Licensed under the Commercial License.