Six-Engine Hybrid Synthesizer

HX6

Most synths make you choose a lane. HX6 doesn't. Every one of its six oscillator slots can independently run Subtractive, Wavetable, FM, Granular, Additive, or Sampler synthesis — mixed, layered, split across the keyboard, or crossfaded by velocity, all in a single patch.

535 Presets 6 Synthesis Engines 16-Voice Polyphony 12-Slot Mod Matrix 8-Band EQ 10GB Sample Library VST3 · AU · Standalone macOS (Apple Silicon) · Windows coming soon
USD $49 $59 Launch Price
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Platform: macOS (Apple Silicon) at launch. A Windows version is coming soon. Not currently compatible with Intel Macs, iOS, Android, Linux, or ChromeOS.

Single-user license · Activate on up to 2 computers · See EULA

HX6 Subtractive engine

See It In Action

A walkthrough of HX6's engines, mod matrix, and signal chain.

Six Engines, Every Slot

HX6 gives you six independent oscillator slots. Each slot can host any of the six engines below — layered, split across the keyboard, or crossfaded by velocity.

Engine 01

Subtractive

Seven waveforms including SuperSaw and variable pulse width, plus ring modulation. A familiar, predictable starting point.

Engine 02

Wavetable

Dual wave slots (A/B) with continuous, modulatable morphing, and custom sample import for your own tables.

Engine 03

FM

6-operator, 32-algorithm DX7-compatible engine with per-operator envelopes, ratio, feedback, and SysEx import.

Engine 04

Granular

Full grain controls — position, size, density, scatter, spray, reverse — over loaded samples or synthesized textures.

Engine 05

Additive

Up to 64 harmonics, hand-drawn or extracted from real audio via built-in FFT analysis.

Engine 06

Sampler

Multi-sample keymapping with WAV, SF2 SoundFont, and native HXMS import, velocity layering, and loop/ping-pong/one-shot playback.

Want a DX7-style FM bell layered under a granular texture pad, with a sampled string section that only kicks in when you play hard? That's one HX6 preset, not three separate plugins fighting for CPU.

Interface

Click any image to enlarge.

HX6 Subtractive engine
Subtractive Engine
HX6 Wavetable engine
Wavetable Engine
HX6 FM engine
FM Engine
HX6 Granular engine
Granular Engine
HX6 Additive engine
Additive Engine
HX6 Sampler engine
Sampler Engine
HX6 key and velocity zone editor
Key & Velocity Zones
HX6 Envelopes page
Envelopes
HX6 Mod Matrix
Mod Matrix
HX6 Filters page
Filters
HX6 Effects page
Effects Chain
HX6 Equaliser page
8-Band Parametric EQ
HX6 Compressor page
Compressor
HX6 Master page
Master & Arpeggiator
HX6 Load Preset browser
Preset Browser
HX6 Save Preset dialog
Save Preset

Colour Themes

HX6 Steel theme
Steel
HX6 Graphite theme
Graphite
HX6 Cobalt theme
Cobalt
HX6 Harbour theme
Harbour
HX6 Fjord theme
Fjord

Audio Demos

Preset demos across HX6's engines, plus multi-engine blends that combine two or more engines in a single patch.

Demos were created using Apple MIDI loops and session musicians in Apple Logic Pro. Some presets draw on HX6's built-in 10GB sample library, sourced from VSCO-2-CE, VCSL, and AKWF-FREE (all CC0 / free-use) plus original Music Sound Software recordings — see full credits below.

Subtractive (40)

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Brass Stab 05
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Brass Stab 09
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Brass Stab 13
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Brass Stab 14
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Keys 03
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Keys 06
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Keys 09
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Keys 10
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Lead 01
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Lead 04
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Lead 09
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Lead 18
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Lead 22
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Mono Lead 01
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Mono Lead 02
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Mono Lead 05
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Mono Lead 06
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Organ 02
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Organ 90
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Pad 03
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Pad 04
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Pad 08
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Pad 10
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Pad 22
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Pluck 01
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Pluck 04
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Pluck 07
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Strings 01
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Strings 02
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Strings 03
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Sub Bass 02
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Sub Bass 05
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Sync Lead 05
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Sync Lead 06
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Sync Lead 07
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Synth Brass Analog
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Synth Brass Classic
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Synth Brass Punch
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Synth Brass Warm
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Warm Pad 04

Sampler (24)

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Aurora
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Bounce
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Bright Brass 2
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Cosmic Strings
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Epic Lead
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Flute SusVib
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Folk Harp
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Funky Wah Lead
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Grand Piano Kawai Legacy
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Grand Piano Kawai
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Grand Piano Steinway B Sus
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Harp
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Harpsichord English
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Organ 7
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Strumstick
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Trombone Vibrato
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Trumpet HarmonM Sus
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Trumpet Stac
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Trumpet SusVib
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Upright Piano 1
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Upright Piano Knight
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Violin Trem
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Warm Poly Synth
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Warp Drive

FM (14)

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Analog Synth
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Bright Keys
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Cathedral Organ
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Chapel Organ Organ
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Church Flute Stop
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Jazz Organ
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Lush Pad
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Mixture Organ
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Organ
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Pizzicato Strings
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Soft Bass
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Thick Bass
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Velvet Strings
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Wurly

Multi-Engine Blends (14)

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Analog Glass Lead
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Analog Trio Keys
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Brass Knuckle Bass
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Brass Section Stack
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Cascading Arp
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Cathedral Organ Stack
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Copper Wire Lead
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Felt Piano Bloom
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Glass Rhodes
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Midnight Keys
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Rust Belt Growl
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Unison Fifth Stack
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Warm Wood Keys
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Wobble Wave Bass

Additive (19)

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Aguitar Rich
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Analog Pad
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Classic Pad
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Ebass Pure
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Eorgan Hollow
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Epiano Rich
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Epic Strings
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Flute Pure
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Funky Wah Lead
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Guitar Rich
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Jupiter Pad
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Organ 7
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Pad 9
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Pluckalgo Hollow
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Sin Pure
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Sinharm Pure
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Squ Pure
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Stereo Rich Pad
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Theremin Pure

Wavetable (3)

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Blended Full
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Epiano Soft
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Theremin Soft

What's Inside

A full mixing console built into the instrument itself.

Six Oscillator Slots, Six Engines

Each of the six slots is independent, with its own Engine dropdown, Level, Pan, and Tune, plus its own key range and velocity range — build splits and layers between any combination of engines.

Deep Modulation

7 LFOs (free-running, mono, or poly retrigger, tempo-syncable), dedicated Amp and Filter envelopes, 3 freely assignable Mod Envelopes, and a 12-slot mod matrix with around 70 destinations.

4 Macro Knobs

Route a Macro to whatever you want it to control, then MIDI-learn it to an external CC or hardware knob — an easy way to expose one meaningful performance control that drives several parameters underneath.

Dual Filters, 12 Types

Filter A and B in serial, parallel, or solo routing, across LP/HP 12dB & 24dB, Band Pass, Notch, Peak, Ladder LP/HP, Formant, Comb, and a Waveshaper — with a live spectrum overlay.

9 Reorderable Effects

Distortion, Phaser, Chorus, Delay, Reverb, Bit Crusher, Flanger, Tremolo, and Stereo Width — drag to reorder, each with its own bypass and wet/dry mix.

8-Band EQ & Compressor

An 8-band parametric EQ with a live spectrum overlay, plus a mastering-style compressor with an interactive transfer curve and real-time gain reduction metering.

Arpeggiator & Chord Mode

Pattern, chord, and custom-interval modes, with adjustable rate, octaves, and gate. Latch and Hold work independently for live performance.

MIDI CC Control

Nine MIDI CCs are pre-mapped and labelled by default: CC2 Breath, CC7 Volume, CC10 Pan, CC11 Expression, CC71 Resonance, CC72 Release, CC73 Attack, CC74 Brightness, CC75 Decay.

535 Factory Presets, 27 Categories

Search and filter by category in the preset browser, with full metadata — type, author, description, tags, and date. Save your own in HX6's native binary format or human-readable XML.

5 Colour Themes

Steel, Graphite, Cobalt, Harbour, and Fjord — purely cosmetic, with no effect on sound. Your choice is remembered between sessions.

Virtual Keyboard & MIDI Input

Play directly from the on-screen virtual keyboard — no MIDI controller needed. Connect a MIDI keyboard and it works automatically, with pitch bend, mod wheel, and aftertouch support.

DX7 Import

The FM engine can read a SysEx bank or single-patch dump from a real DX7 and map it directly onto HX6's operators, algorithm, and envelopes.

💿 10GB Built-In Sample Library

HX6 ships with real recorded instrument content powering the Sampler, Wavetable, and Additive engines out of the box — no separate sample pack to buy, no third-party licensing to sort out. Fully included in your purchase.

HX6's built-in sample library draws on the following sources:

  • VSCO-2-CE (Versilian Studios Chamber Orchestra: Community Edition) — orchestral instrument samples, released under Creative Commons Zero (CC0).
  • VCSL (Versilian Community Sample Library) — broad instrument coverage, released under Creative Commons Zero (CC0).
  • AKWF-FREE (Adventure Kid Waveforms) — single-cycle wavetable source content, released for free use.
  • MSSSamples — original recordings made by Music Sound Software specifically for HX6.

All third-party content is used under its respective open licenses; full attribution is included with the product documentation. Presets, patches, and any audio you create using HX6 — including this bundled content — are yours to use freely in your own commercial or personal work.

Read the Full User Manual

Every page of the plugin, walked through in the order sound flows through it — from choosing an engine to the final compressor stage.

Open the Manual

🖥 Platform Availability

HX6 is available now for macOS (Apple Silicon) as VST3, AU, and Standalone. A Windows version is coming soon — Windows purchasers will be notified when it's available. HX6 is not currently compatible with Intel-based Macs, iOS, Android, Linux, or ChromeOS.