Effect / iZotope
iZotope Ozone 11
8.4Great
iZotope Ozone 11 is a mastering plugin suite, offered in Elements, Standard, and Advanced editions, with AI-assisted Master Assistant workflows.
Plugin comparison
iZotope Ozone 11 vs TDR Kotelnikov
Specs, price and the Dubspot Score, side by side — with our verdict on which effect to buy.
Independent score / workflow fit / buying signal
Contenders
The side-by-side
8.5Great
TDR Kotelnikov is Tokyo Dawn Labs' free wideband dynamics processor for transparent mix-bus and mastering compression with separate peak and RMS release.
Score verdict
Which should you buy?
On the Dubspot Score, TDR Kotelnikov comes out ahead (8.5). That said, the right pick depends on your workflow and budget — read both reviews before deciding.
Technical matrix
Specs compared
| Signal | iZotope Ozone 11 | TDR Kotelnikov |
|---|---|---|
| Price | — | Free |
| Dubspot Score | 8.4 | 8.5 |
| Formats | VST3, AU, AAX | VST2, VST3, AU, AAX |
| Editions | Elements, Standard, Advanced | — |
| Plugin formats | AAX, AU, VST3 (64-bit only; VST2 not supported) | — |
| New modules (Advanced) | Clarity, Stem Focus, Transient/Sustain, Upward Compress | — |
| Master Assistant | AI-powered assistant with Assistive Vocal Balance vocal checker | — |
| Standard modules | Maximizer, Imager, Match EQ, Dynamics, EQ, Exciter, Vintage | — |
| Apple silicon | Native Apple silicon (M-series) and Intel Mac support | — |
| Type | — | Wideband dynamics processor / bus compressor |
| Version | — | 1.6.7 |
| Processing | — | 64-bit multi-rate; delta-oversampled path |
| Key controls | — | Crest-factor scheme with separate peak and RMS release |
| Formats | — | VST2, VST3, AAX (Win 64-bit); VST2, VST3, AU, AAX (Mac 64-bit) |
| System | — | Windows 7+; macOS 10.9+; OpenGL support |
| Paid upgrade | — | TDR Kotelnikov GE (Gentleman's Edition) |
See the full plugin database for more comparisons.