🔥 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 · Standalone · macOS (Universal Binary)

Cleansix — A surgical-grade dynamic resonance suppressor — plugin interface for macOS (AU, VST3, Standalone)
Try Cleansix Raw — Free All Plugins

INSTALLATION

3 steps. Takes 30 seconds.

1

RUN THE INSTALLER

Double-click Cleansix_Installer.pkg. Choose AU, VST3, 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/Standalone, signed and notarized for macOS

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
  • Architecture Apple Silicon + Intel (Universal Binary)
  • Formats AU, VST3, Standalone
  • DAW Any AU or VST3 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 forever.

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 support Apple Silicon?

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

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 forever.

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

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