devices · Nano Cortex · reference · specifications

specifications

every number anyone publishes, with the source attached. Where Neural DSP's own documents disagree with each other, both readings are noted, not averaged.
section
the hardware
firmware
NanOS 2.2.1

Product

released
18 September 2024
Nano Cortex launch announcement
launch price
$549 USD / €569 EUR
Nano Cortex launch announcement
latest firmware
NanOS 2.2.1, released 10 December 2025
NanOS 2.2.1 release notes · Nano Cortex firmware updates

Physical

controls
2 stainless steel stomp + rotary footswitches · 7 knobs · 2 analog switches · 5 digital switches
Nano Cortex User Manual 2.2.0
dimensions
14.4 × 10.3 × 6.2 cm (5.6 × 4.0 × 2.4 in)
Nano Cortex User Manual 2.2.0 · Nano Cortex launch announcement
weight
620 g (1.36 lb)
Nano Cortex User Manual 2.2.0
display
None. LED rings plus four rows of five indicators.
Sound On Sound review
controls
6 knobs, 5 buttons, 2 footswitches that are also rotary encoders
Nano Cortex User Manual 2.2.0 · Sound On Sound review

Capacity

footswitch-reachable presets
4 (IA, IB, IIA, IIB) by default, or 2 plus a global bypass

4-Preset Mode is the factory default—“In the default 4-Preset Mode, Nano Cortex offers quick access to four Presets.”

Nano Cortex User Manual 2.2.0 · Creating and managing presets
MIDI Program Change range
PC 0–63, mapped automatically
Nano Cortex User Manual 2.2.0 · Using MIDI on Nano Cortex
factory captures
25 · 20 guitar, 4 bass amps, 1 bass overdrive

The FAQ's “20 guitar plus 5 bass” and the device list's “4 bass amps” are the same five: counting the Anima Fuzz bass overdrive reconciles them exactly.

Nano Cortex FAQ · Nano Cortex device list
user capture slots
256
Nano Cortex FAQ
capture banks
5 banks of 5, plus a User Library
Nano Cortex User Manual 2.2.0 · Creating Neural Captures on Nano Cortex
IR slots on the device
5, plus a bypass position
Nano Cortex User Manual 2.2.0
factory cabinets
10 · 8 guitar, 2 bass
Nano Cortex device list · Nano Cortex FAQ
factory IRs
300 · 10 cabinets × 5 microphones × 6 positions
Nano Cortex FAQ · Nano Cortex User Manual 2.2.0
user IR slots
256, uploaded through the Cortex Cloud website, not the app
Nano Cortex FAQ · Nano Cortex User Manual 2.2.0
effect slots
5 loadable (2 pre, 3 post) plus one fixed Input Gate
Nano Cortex device list · NanOS 2.0.0 release notes
cloud backups
Up to 5
NanOS 2.2.0 release notes

Audio and signal

capture input boost
+26 dB of extra gain for quiet sources
Nano Cortex User Manual 2.2.0
headphones
3.5 mm · 55 mW into 20 Ω. Loud enough for most headphones, not for high-impedance studio pairs
Nano Cortex User Manual 2.2.0
signal flow
Mono in, stereo out. Stereo begins at the IR Loader.
Nano Cortex FAQ
instrument input
1 MΩ, +10 dBu maximum
Andertons spec sheet
main outputs
560 Ω, +10 dBu unbalanced / +16 dBu balanced maximum
Andertons spec sheet
capture input
1 MΩ (TS) / 45 kΩ (XLR), +10 dBu maximum, +26 dB boost available
Andertons spec sheet
headphone output
55 mW into 20 Ω
Andertons spec sheet
capture time
About 5 minutes, on the device, no computer or internet needed
Nano Cortex FAQ · Creating Neural Captures on Nano Cortex
preset switch gap
About 60 ms. Delay and reverb trails do continue across the change.
Nano Cortex FAQ
tuner reference
400–480 Hz, default 440 Hz
Nano Cortex User Manual 2.2.0

Computer interface

USB channels
7 · 4 in, 3 out. Input 1 is your dry D.I., inputs 3/4 are the processed stereo pair
Nano Cortex User Manual 2.2.0
audio clock
48 kHz, fixed
Nano Cortex User Manual 2.2.0
protocol
USB Audio Class 2.0 over USB-C
Using Nano Cortex as an audio interface · Andertons spec sheet
channels
7 · 4 in, 3 out. Input 1 is your dry D.I., inputs 3/4 are the processed stereo pair
Using Nano Cortex as an audio interface
format
24-bit / 48 kHz, fixed. No other sample rate is available.
Using Nano Cortex as an audio interface
round-trip latency
9.1 ms at 48 kHz with a 64-sample buffer

Neural DSP publishes no latency figure. This is a single owner's measurement, not a specification.

Forum: Nano Cortex as an audio interface
drivers
macOS and iOS class-compliant. Windows requires the Nano Cortex ASIO driver.
Using Nano Cortex as an audio interface · Sound On Sound review

Power

USB-C power
5 V, 1.5 A or higher. It runs from USB
Nano Cortex User Manual 2.2.0
DC
9–12 V DC, 600 mA minimum, center-negative, 2.1/5.5 mm
Nano Cortex power sources
USB-C
5 V, 1.5 A minimum. USB-A cannot power the device.
Nano Cortex power sources

Never published

Numbers that don't exist

Neural DSP has never published these. A blank in a spec table invites an invented figure, and a few invented ones circulate as fact.

  • DSP chip, core count and clock speed
  • Signal-to-noise ratio
  • Total harmonic distortion
  • Dynamic range
  • Frequency response
  • Bluetooth version and profile
  • What USB input channel 2 carries. The manual documents 4 in / 3 out and names input 1 as the dry D.I. and inputs 3/4 as the processed stereo pair, but never says what 2 is
  • Country of manufacture
  • The NanOS 1.1.0 changelog
  • Maximum length and sample rate for user IR files
  • Center frequencies and unity positions of the BASS, MID and TREBLE controls
  • Whether a saved capture can be re-trained or re-calibrated
watch out

Neural DSP has never published any of these. The tone-control frequencies matter most: owners have asked for them, because without them you learn a three-band EQ by ear.

Forum: clarification on the capture tone/EQ block · MusicRadar review
How to read the labels
measured
Read off the hardware by us, not taken from a document.
official
From the manufacturer's manual, FAQ, guides or release notes.
retail spec
From an authorized dealer's published specification.
review
Observed and published by a professional reviewer.
community
Reported by owners and used to corroborate, not as a primary spec.
our reading
Our interpretation, not something the manufacturer states.
unverified
We could not confirm this, or sources disagree.
Where to go next

gridleak presets don't install on Nano Cortex yet. the amps are all in the catalog.

the catalog →