7.2Good
Matriq-Six is a free Oberheim Matrix-6R emulation from Full Bucket Music, modeling the original 6809 CPU and ROM with 6-voice polyphony and SysEx patch import.
Plugin comparison
Full Bucket Matriq-Six vs Surge XT
Specs, price and the Dubspot Score, side by side — with our verdict on which synth to buy.
Independent score / workflow fit / buying signal
Contenders
The side-by-side
8.7Great
Surge XT is a free open-source hybrid synthesizer with deep modulation, 12 oscillator algorithms, MPE, microtuning, and 2800+ factory patches.
Score verdict
Which should you buy?
On the Dubspot Score, Surge XT comes out ahead (8.7). That said, the right pick depends on your workflow and budget — read both reviews before deciding.
Technical matrix
Specs compared
| Signal | Full Bucket Matriq-Six | Surge XT |
|---|---|---|
| Price | Free | Free |
| Dubspot Score | 7.2 | 8.7 |
| Formats | VST, VST3, AU, CLAP, AAX | VST3, AU, CLAP, LV2, Standalone |
| Type | Oberheim Matrix-6R emulation (1985 analog polysynth) | Open-source hybrid synthesizer |
| Modeling | 6809 CPU and hardware simulation, ROM v2.15 by Bob Grieb | — |
| Voices | 6 | — |
| Patches | Imports Matrix-6R SysEx files | — |
| Interface | Resizable, native C++ | — |
| Formats | VST2, VST3, CLAP, AAX (Windows); plus AU (macOS); 32- and 64-bit | VST3, AU, CLAP, LV2, Standalone |
| Status | Prototype, version 0.5.5 | — |
| Price | Free | — |
| Released | October 26, 2026 | — |
| Version | — | 1.3.4 (stable) |
| Oscillators | — | 3 per scene; 12 algorithms (Classic, Modern, Wavetable, FM2/FM3, String, Twist, and more) |
| Factory content | — | 2800+ patches; 700+ wavetables |
| Scenes | — | Two full synthesis scenes for layer/split patches |
| Platforms | — | Windows, macOS (Intel/Apple Silicon), Linux |
See the full plugin database for more comparisons.