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Reference
Reference

Specifications

Every number, with the source attached. Where the bare figure misleads — four outputs that are really two pairs, an IR count that hides a conversion — the line says so.

Physical
Dimensions
29 × 19.5 × 6.9 cmQuad Cortex product page
Weight
1.95 kg

Light for what it is, but the 12 V 3 A supply is a brick — budget for it in the gig bag.

Quad Cortex product page
Display
7″ capacitive touchscreenQuad Cortex product page
Footswitches
11

All of them stainless steel, and all of them rotary encoders as well as switches. A–H plus BANK UP, BANK DOWN and TEMPO.

Quad Cortex product page · Gridleak: read off the unit
Side panels
Nothing on either side

Every jack is on the rear. Worth stating because the Nano Cortex puts its capture input and boost on its right cheek, and owners of both go looking.

Gridleak: read off the unit
Processing
Grid
4 rows × 8 slots

32 device block slots, arranged as two parallel paths.

Quad Cortex User Manual 4.0.0
Sample rate
48 kHz, fixed

It cannot be changed.

Quad Cortex Wiki: FAQ
Factory IRs
1,000+Quad Cortex product page
Storage
Presets per setlist
256Quad Cortex User Manual 4.0.0
User setlists
10

Plus Factory and My Presets.

Quad Cortex User Manual 4.0.0
User IRs
2,048

Uploads are converted to 48 kHz and resized to 1,024 samples — about 21 ms — whatever you feed in.

Quad Cortex User Manual 4.0.0 · Quad Cortex Wiki: FAQ
Connections
FX loops
2, fully independent

SEND 1/RETURN 1 and SEND 2/RETURN 2. Sends run at line level by default.

Gridleak: read off the unit · Quad Cortex Wiki: FAQ
Outputs
2 × XLR, 2 × ¼″

Two pairs, not four independent outs. OUT 1/L and OUT 2/R are XLR; OUT 3/L and OUT 4/R are quarter-inch and lose 6 dB to a TS cable.

Gridleak: read off the unit · Quad Cortex Wiki: Gain Staging
Headphones
¼″ TRS, up to 300 ΩQuad Cortex product page · Gridleak: read off the unit
MIDI
In, and a switchable Thru / OutGridleak: read off the unit · Quad Cortex User Manual 4.0.0
Expression
2 × TRS

Assignments are per-preset. There is no global expression assignment.

Gridleak: read off the unit · Quad Cortex Wiki: FAQ
USB
Type B

The square printer connector — not USB-C. Multi-channel audio plus the Cortex Control link.

Gridleak: read off the unit
Power
12 VDC, 3 A

Mains only. Most pedalboard supplies cannot deliver 3 A on one outlet.

Gridleak: read off the unit · Quad Cortex User Manual 4.0.0
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.
Community
Reported by owners. Corroboration, not a primary spec.
Our reading
Our interpretation, not something Neural DSP states.
Unverified
We could not confirm this, or sources disagree.