NanOS 2.3.0 Adds Effects and a Metronome to Nano Cortex

Noise Harmony

2 hours ago

3 min read

Neural DSP has released NanOS 2.3.0 for Nano Cortex, adding five effects and a metronome through the Cortex Cloud app. That gives the compact modeler more pitch and reverb choices, plus a practice click that stays active while you change presets. We explain what is new, where the effects fit, and what you need before installing the free update.

Top-down view of the Nano Cortex pedal with lit gain, EQ, amount and level knobs, Capture button and two footswitches

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Five new effects, but the slots stay fixed

App screenshot of an effects chain: input gate, compressor and overdrive pre, chorus, delay and room reverb post — The app's Effects page shows the fixed layout: an input gate, two Pre slots and three Post slots for modulation, delay and reverb. SOURCE: Neural DSP

The NanOS 2.3.0 release adds three pitch effects and two reverbs, but the Nano Cortex hardware still has five effect slots. Poly Octaver takes its cue from the Electro-Harmonix POG, Wham from the DigiTech Whammy, and Chief OC2 from the BOSS OC-2. All three work only in Pre-effects slot 1. Neural DSP does not give tracking, interval, latency or polyphony figures, so those details remain unconfirmed.

The two reverbs are Blossom (ST) and Shimmer. Blossom (ST) is inspired by the Bloom mode on the Strymon BigSky, while Neural DSP does not tie Shimmer to a named pedal. Both load only in Post-effects slot 3, so the new devices cannot be dropped anywhere in the chain. You choose and edit them in Cortex Cloud, then use the pedal’s FX button for slot selection and bypass.

Also check

NanOS 2.3.0 puts a metronome in Cortex Cloud

Nano Cortex pedal with cables, a smartphone running the app, headphones, two speakers and a black electric guitar — Nano Cortex in a home setup next to a phone running the Cortex Cloud app, headphones and a pair of monitors. The metronome menu itself isn't shown. SOURCE: neuraldsp.com

NanOS 2.3.0 puts the new metronome in Cortex Cloud’s redesigned Tempo menu for Nano Cortex. It includes Playback, Volume, Sound, Time Signature and Subdivisions controls. The click keeps playing when you close the menu or switch presets, and it follows the internal tempo or incoming MIDI Clock. A power cycle resets its settings and mutes playback, so check it again before your next practice session.

Update Cortex Cloud before looking for the new devices. Version 2.8.3 was current on both iOS and Android stores when checked on November 12, and Neural DSP says the latest app is needed for every 2.3.0 feature. Pair the pedal over Bluetooth, open Devices, use the update banner and keep the mobile device awake with a stable internet connection until the pedal reboots. Do not minimize the app, turn off Bluetooth or lock the screen during installation.

Price and Availability

NanOS 2.3.0 has been available since November 11, 2026, and the firmware is free for Nano Cortex owners. Neural DSP recommends it for every owner, while the required Cortex Cloud update is also available now. At the time of writing, the Neural DSP Nano Cortex costs €569 at Thomann, with stock marked for immediate dispatch. The official Nano Cortex page has the full product details and current update information.