Quad Cortex & Quad Cortex mini · CorOS 4.1.0 · released 25 Aug 2026

Quad Cortex Block Atlas

Every virtual device you can drop into a block on the grid, with the real gear it's modeled on and what it's good for. The mini runs the same CorOS and the same device library as the full-size Quad Cortex.

New in 4.1.0 only Plugin devices Factory captures

Reading the names

Neural DSP renames real brands. The common prefixes:

Suffixes & tags

(M): Mono version, lighter on DSP.
(ST): Stereo version, for stereo rigs or wide time effects.
(S/C): Sidechain version: a second input (another row or input) controls it, e.g. ducking or keyed gating.
Patch: Both input channels jumpered together, the classic "jumped" vintage Marshall/Fender trick for a fatter, hotter tone.
Lite: IR loader without the built-in room reverb, so it uses less DSP.
New 4.1: Added in CorOS 4.1.0.
Plugin: Only loads if you own that Neural DSP plugin licence, linked to your account.

Also new in 4.1.0

Device Presets: save and recall settings for any single amp or effect, with 2,000+ factory Device Presets from Neural DSP.

Archetype X plugins on the unit: John Mayer, Petrucci, Misha Mansoor, Rabea and Tim Henson X add 70+ amps, cabs and effects if you own the licence.

Changes: Mono Synth is now called Overlord Synth. Doubler and Plugin Doubler gain an INPUT three-way switch. Plugin Blend and Transparent Blend gain a BLEND LEVEL knob.