CARBON Q
by Mastering The Mix · EQ · Connected session EQ
Not rated yet
CARBON Q is a connected EQ and level-balancing system, with a MIX instance on the master and agents on vocal, music, drum and bass tracks, all controlled from one window.
It can match presets to reference tracks and costs £59 (about $78.16), on sale for £41.30 (about $54.71).
Best for: Vocals, Drums, Bass, Mix Bus. Genres: all genres.
Keywords: vocals, bass, drums, auto-gain, dynamic, full mix, linear-phase, samples & loops, beginner-friendly, bus processing, high latency, mid/side, mix bus, mixing, reference & monitoring.
What it does
CARBON Q is a connected EQ that works across a whole session. A MIX instance on the master talks to agent instances on vocal, music, drum and bass buses, so you can "set the EQ and volume balance" of all of them from one window.
- Connected instances: instances link automatically when loaded; a role selector sets each one to MIX, VOCALS, MUSIC, DRUMS or BASS.
- Smart Presets: loop the busiest section, press Analyze, and the browser shows the ten presets closest to your mix.
- Reference to preset: any song can become a preset; CARBON Q splits it into vocal, music, drum and bass stems and copies their EQ and levels.
- Mix and match: agents can be unlinked from a reference, so different channels can follow different sources.
- Mid/Side mode: separate curves for the centre (yellow) and sides (blue) across the mix.
- Dynamic Mode: automatic peak control, full-range or split into bands, to keep the balance steady.
- Level-matched, linear phase: output stays level-matched while you EQ, and the max-quality linear-phase filters add 41 ms of latency.
A free trial and a 30-day money-back guarantee are offered.
Source: Mastering The Mix product page
When to use it
CARBON Q is the pick when the problem is balance between vocals, music, drums and bass, not one track. Compared with Pro-Q 4 or TDR Nova, it gives up precise per-band surgery for a view of the whole mix and reference-based presets. Unlike Mastering The Mix's REFERENCE 3, which shows how your mix differs from a reference, it applies EQ and level changes to your buses. It is closer in idea to bloom's broad tone shaping than to a parametric EQ, but works on four stems at once. It needs your session grouped into those four buses, and its 41 ms latency rules out live monitoring.
- Best for: balancing stems against references, beginners and fast mixes.
- Genres: any, especially vocal-led pop, hip-hop and electronic music.
- Look elsewhere if: you want precise, single-track EQ or resonance repair; use Pro-Q 4 or TDR Nova.
- Tip: loop the busiest part of the song before pressing Analyze, and start Dynamic Mode around 50% full-range.
What producers say
Launch coverage likes the idea of a whole-mix EQ but notes that real-world tests of the stem separation are still to come.
- Lord Reverb rated it 4.0 out of 5 in a launch-day review based on the manual and demos, calling it worth the money for producers who struggle with balance.
- Gearnews said the connected approach "makes complete sense" but couldn't yet judge stem separation across genres.
- Criticisms: Lord Reverb noted it needs a pre-grouped bus layout, four roles mean mixed instrument beds share one curve, and a 9 dB ceiling is too little for severe resonances.
Where to buy
- Mastering The Mix: $55 (£41.30 (regular £59) converted to USD (ECB rate, 29 Sep 2026))
- Plugin Boutique: $56 (regular $80)
Tutorials and reviews
Similar plugins
- SEQ-S by NUGEN Audio · Linear-phase spline match EQ · $249
- EQuivocate by Newfangled Audio · Auditory-filter graphic EQ · $99
- Pro-Q 4 by FabFilter · Digital parametric / dynamic · $169
- CurveEQ by Voxengo · Spline / match EQ · $69
- MAutoDynamicEq by MeldaProduction · Dynamic EQ with auto-matching · $51
- smart:EQ 4 by sonible · AI-assisted · $106.31
- MS Studio by Rast Sound · Mid/side tone matcher · $89.70
- Marvel GEQ by Voxengo · Linear-phase graphic EQ · Free
- thEQred by MAAT · Linear phase EQ with variable slopes · $489
- Chokidar3 EQ by Noisebud · Mastering EQ
More from Mastering The Mix
- RESO by Mastering The Mix · Resonance Suppressor · 8.1/10 · $79
- REFERENCE 3 by Mastering The Mix · Utility · 9.1/10 · $79
- LEVELS by Mastering The Mix · Utility · 8.8/10 · $79
- ANIMATE by Mastering The Mix · Multi-FX · $79
- BASSROOM by Mastering The Mix · EQ · $79
- FASTER MASTER by Mastering The Mix · Multi-FX · $56
- FUSER by Mastering The Mix · Resonance Suppressor · $79
- LIMITER by Mastering The Mix · Limiter · $79