sonible smart:EQ 4
sonible smart:EQ 4: A focused EQ plug-in for balancing grouped tracks and shaping spectral space. Ranked #12 of 41 in AI Audio Mixing Software by our editors (6.9/10); pricing: 30-day trial; best for AI spectral balance across grouped tracks.
At a glance
- Editor score6.9 / 10
- Pricing30-day trial
- Best forAI spectral balance across grouped tracks
- Free planNo
- Paid from$129 one-time
- Founded2013 · Graz, Austria
- Facts checked22 Sep 2026
Where it wins
- Cross-channel unmasking and grouped control for up to 10 tracks
- Dynamic EQ, mix profiles, and reference-track matching
- Mid/side processing with multichannel spectral analysis
Where it doesn't
- Focused on EQ and spectral work rather than broad mixing functions
- Grouped control supports up to 10 tracks
- No free plan; the regular price is a $129 one-time purchase
Our verdict on sonible smart:EQ 4
sonible smart:EQ 4 is an AI-assisted equalizer plug-in for music producers, mixing engineers, and audio creators. It analyzes audio for spectral imbalances and supports cross-channel processing to help separate competing tracks. The plug-in runs inside compatible digital audio workstations on Windows and macOS, with VST, VST3, AU, and AAX formats documented by sonible. A 30-day fully functional trial provides time to assess its workflow before purchase.
Pricing is straightforward: the published plan is smart:EQ 4 at $129 USD as a one-time purchase. There is no free plan. The plan includes AI-assisted spectral balancing, cross-channel processing, dynamic EQ, mix profiles, and reference-track matching. Its main strength is depth within EQ-focused work: dynamic bands include threshold, ratio, attack, release, and range controls, while automatic gain compensation supports level-aware adjustments. Mix profiles cover instruments, speech, genres, and full mixes, and reference-track profile matching adds another way to guide tonal decisions.
The workflow is particularly suited to grouped-track balancing. Group view supports up to 10 tracks, with remote control of EQ across grouped instances and cross-channel processing for spectral unmasking. Mid/side processing and multichannel spectral analysis extend the plug-in beyond basic channel EQ. Choose smart:EQ 4 if spectral balance, unmasking, and reference-led EQ are central to your mixing process. An alternative may be a better fit if you need a broader audio production suite or mixing functions beyond its EQ-centered scope.
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sonible smart:EQ 4 pricing
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sonible smart:EQ 4 fact sheet
| Free plan | No |
|---|---|
| Paid from | $129 one-time |
| DAW plugin | Yes |
| Stem separation | Not verified |
| Automatic EQ | Yes |
| Automatic dynamics | Not verified |
| Spatial processing | Not verified |
| Maximum track count | 10 tracks |
| Plugin formats | Vst |
| Free trial | 30 days |
| Deployment | Desktop |
| Platforms | Windows, macOS |
| Compliance & security | GDPR |
| Support | Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | 30-day trial (source) |
| Website | sonible.com |
| Facts checked | 22 Sep 2026 |
Alternatives to sonible smart:EQ 4
- iZotope Neutron 5A deep AI-assisted mixing suite for producers who want detailed control inside a DAW.9.2
- iZotope Nectar 4A focused vocal suite with AI assistance, harmonies, effects, and unmasking.7.9
- EZmix 3A flexible preset-led mixing tool, but not a complete automatic full-mix solution.7.9
See all sonible smart:EQ 4 alternatives →
Also Ranked In
sonible smart:EQ 4 is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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