Tone Projects: UNI-L MASTER LIMITER 1.0.0r1 is Here! [macOS]
Tone Projects UNI-L is a brand new state-of-the-art master limiter for Mac — released May 2026 and co-developed with renowned mastering engineer Bob Macc. UNI-L is built around a unique philosophy: modern loudness that stays pure and alive. Unlike conventional limiters, UNI-L combines frequency-aware wideband limiting driven by a multiband detection path, a dual-stage limiting architecture with a fully integrated clipping stage, and adaptive program-dependent lookahead and release — all designed to let you push loudness as far as you need while preserving tonal integrity, transient clarity, and musical depth. Praised by some of the most celebrated mastering engineers in the world — including multiple GRAMMY winners Luca Pretolesi, Mike Tucci, Bob Katz, and Mat Leffler-Schulman — UNI-L has quickly established itself as the most powerful and flexible mastering limiter available on Mac today. Available in VST3, AU, and AAX formats with native Apple Silicon support and a free trial.
💡 Quick Summary
Tone Projects UNI-L macOS — Co-developed with Bob Macc. Frequency-aware wideband limiting with multiband detection. Dual-stage limiting (slow + fast) + integrated clipper. Adaptive lookahead + program-dependent release. 32x linear-phase oversampling. True Peak mode. EBU R128 LUFS metering. Transient Override. Clip Attack. Fast Above + Clip Above crossovers. Low-band stereo linking. Variable Low Split. Delta + Gain Match monitoring. TPDF dithering + noise shaping. Quick Start system with macro slider. A/B switching. Scalable UI. VST3 + AU + AAX. macOS Intel + Apple Silicon. v1.0.0 — May 2026. Free trial available.
Key Features
Frequency-Aware Wideband Limiting
A unique multiband detection path drives the wideband limiter — frequency-aware limiting without tonal shifts or destructive crossovers. Adaptive lookahead and auto-release continually adjust to spectral and dynamic content on Mac.
Dual-Stage Limiting + Integrated Clipper
Slow limiter for average dynamics, fast limiter for peaks, and a tightly integrated clipper — all working together. Extensive control over how and when each stage works, with precise balance between loudness, dynamics, and transients on Mac.
Transient Override
Flexible transient detection gives musically important transients special treatment — route the snare to clipping for extra punch while handling the rest of the signal more gently. Preserve impact and presence on Mac.
Adaptive Lookahead & Release
Program-dependent adaptive lookahead with independent Low, Mid, and High band timing control. Frequency- and program-dependent adaptive release with Classic and Modern modes, variable Curve, and Soft Hold on Mac.
Pristine 32x Oversampling Clipper
Up to 32x linear-phase oversampling with bit-transparent pass-through and no post-filtering overs — the cleanest integrated clipper in any mastering limiter on Mac.
Low-Band Stereo Linking
Maintain a focused, mono-compatible low end by fully linking low frequencies while allowing unlinked processing everywhere else — a unique and musically intelligent approach to stereo control on Mac.
EBU R128 LUFS Metering
Professional integrated loudness metering compliant with broadcast and streaming standards — True Peak mode to prevent intersample overs on Mac, plus TPDF dithering with optional noise shaping.
Quick Start System
Carefully tuned presets with a single macro slider controlling the entire limiter for instant, great-sounding results in seconds — with full parameter control always available when you need it on Mac.
What Industry’s Best Are Saying
“Uni-L is probably one of the most flexible and versatile limiters on the market today. The level of reshaping and tone control you can achieve is incredible — it gives you the power to push loudness while still maintaining musicality, depth, and character in a way that feels truly unique.”
GRAMMY-winning Mixing & Mastering Engineer — Skrillex, Drake, Diplo, Madonna, Daft Punk
“With so many limiters claiming to be the best, Uni-L is definitively the best new limiter out there. It gives me the low end, punch, transient shaping and flexibility to inject even more life and energy in my masters.”
2× GRAMMY & Multiple Platinum Winning Mastering Engineer
“Uni-L is more full featured and versatile than any other digital limiter I’ve used. It can be subtle and transparent, or aggressive when needed. In all cases, I was able to obtain a louder master with fewer artifacts than with other limiters.”
GRAMMY-winning Mastering Engineer — Author of Mastering Audio
“Uni-L has reshaped how I approach limiting. It’s transparent in a way that retains transients without smearing, density increases without sounding compressed, and there’s a gracefulness that feels intentional rather than accidental.”
GRAMMY-nominated Mastering Engineer — Jon Batiste, Dan Deacon, Jackson Dean, Blondie, Ice Cube
“Having used the Uni-L for a year in beta on multiple gold and platinum releases, the ingenious and tweakable design raises the bar for what’s possible in mastering limiting.”
Multiple Platinum Certified Mastering Engineer
“Uni-L is the most powerful limiter available and it’s a long way to number two. Mix contours and transient detail survive as the gain goes up. Turns out you can have it all.”
Senior Engineer at Telegraph Mastering
Full Specification
Oversampling
Up to 32x linear-phase — bit-transparent pass-through
True Peak
Optional True Peak mode — prevent intersample overs
LUFS Metering
EBU R128 loudness metering — broadcast compliant
Dithering
TPDF dithering with optional noise shaping
A/B Switching
Full Undo, Redo, and A/B preset comparison
Scalable UI
Resizable interface — Default and Advanced view modes
Monitoring
Delta, Gain Match, and other helpful monitoring modes
Apple Silicon
Native M1/M2/M3/M4 + Intel — no Rosetta required
Plugin Formats — macOS
🎵 VST3 (64-bit)
🎵 AU — Audio Unit (64-bit)
🎵 AAX — Pro Tools (64-bit)
🎵 AU — Audio Unit (64-bit)
🎵 AAX — Pro Tools (64-bit)
Supported DAWs — macOS
Logic Pro 10+ (AU)
GarageBand 10+ (AU)
Pro Tools 12+ (AAX)
Ableton Live 11+ (VST3)
Cubase 13+ (VST3)
Bitwig 4+ (VST3)
Digital Performer 11+ (VST3)
Reaper 6+ (VST3)
Studio One 5+ (VST3)
WaveLab (VST3)
GarageBand 10+ (AU)
Pro Tools 12+ (AAX)
Ableton Live 11+ (VST3)
Cubase 13+ (VST3)
Bitwig 4+ (VST3)
Digital Performer 11+ (VST3)
Reaper 6+ (VST3)
Studio One 5+ (VST3)
WaveLab (VST3)
System Requirements — macOS
| Requirement | Details |
|---|---|
| Operating System | macOS 10.15 Catalina or later |
| Processor | Apple Silicon (M1/M2/M3/M4) native + Intel native |
| RAM | 4 GB minimum — 16 GB recommended |
| Plugin Formats | VST3, AU, AAX (64-bit only) |
| Version | v1.0.0 — Initial Release (May 2026) |
| Oversampling | Up to 32x linear-phase |
| Metering | EBU R128 LUFS + True Peak |
| Co-developed with | Bob Macc — Mastering Engineer |
| Developer | Tone Projects (Rune Lund-Hermansen) |
| Trial | Free trial available — toneprojects.com |
Pros & Cons
✅ Pros
- ✓Co-developed with Bob Macc — mastering pedigree
- ✓Praised by 6+ GRAMMY-winning engineers
- ✓Frequency-aware wideband limiting — no tonal shifts
- ✓Dual-stage + integrated clipper — fully controllable
- ✓32x linear-phase oversampling — pristine clipping
- ✓Transient Override — per-element treatment
- ✓Low-band stereo linking — focused low end
- ✓Apple Silicon native — M1/M2/M3/M4
- ✓Free trial available on Mac
⚠️ Cons
- ✗v1.0.0 — brand new, no long track record yet
- ✗Advanced controls have a learning curve
- ✗Mastering-focused — less suited for tracking/mixing
Frequently Asked Questions
What is Tone Projects UNI-L Master Limiter for macOS? ▾
UNI-L is a brand new professional master limiter plugin for macOS developed by Tone Projects and co-developed with mastering engineer Bob Macc — released in May 2026 (v1.0.0). It features frequency-aware wideband limiting driven by a multiband detection path, dual-stage limiting (slow + fast), a tightly integrated 32x linear-phase oversampling clipper, adaptive program-dependent lookahead and release with independent Low/Mid/High band timing, Transient Override for per-element treatment, True Peak mode, EBU R128 LUFS metering, low-band stereo linking, TPDF dithering, A/B switching, and a Quick Start system with macro slider. Available in VST3, AU, and AAX formats for macOS 10.15+ with native Apple Silicon (M1/M2/M3/M4) and Intel support. Free trial available.
How is UNI-L different from other mastering limiters on Mac? ▾
UNI-L stands apart from conventional mastering limiters in several key ways. Its wideband limiting is driven by a unique multiband detection path — giving you the transparency of wideband processing without the tonal coloration of traditional multiband limiters. The dual-stage architecture (slow limiter + fast limiter + integrated clipper) gives independent, precise control over each stage’s contribution to gain reduction — allowing you to shape the balance between loudness, dynamics, and transients with a level of precision not available in most limiters. The Transient Override feature lets you route specific elements (like a snare) to clipping or fast limiting while treating the rest of the signal differently — a genuinely unique capability on Mac.
Does UNI-L work on Apple Silicon Macs? ▾
Yes — UNI-L runs natively on both Apple Silicon (M1, M2, M3, M4) and Intel Macs without requiring Rosetta 2. Native Apple Silicon support ensures maximum performance and efficiency on modern Macs. The plugin is available in VST3, AU (Audio Unit), and AAX formats for macOS 10.15 Catalina or later — fully compatible with Logic Pro, Pro Tools, Ableton Live, Cubase, Reaper, Studio One, Bitwig, Digital Performer, WaveLab, and GarageBand on Mac.
Download Tone Projects UNI-L Master Limiter macOS full version — frequency-aware wideband limiting, dual-stage architecture, 32x oversampling, co-developed with Bob Macc — praised by GRAMMY-winning mastering engineers!
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