gain staging and levels

what this lesson covers

There is no published gain-staging guidance for the Nano Cortex. Here it is in full: the input, where clipping happens, the two volume controls and level-matching.

the input, and what you can’t control

The instrument input takes up to +10 dBu into 1 MΩ. There is no global input level and no pad, so you can’t compensate once, for the whole device, for a guitar with hot pickups.

The GAIN ring blinks three times when the input clips. Watch for it while playing hard. Input clipping happens before anything else in the chain, and nothing downstream fixes it.

The only workaround is a duplicate set of presets for the hot guitar.

where clipping happens

Three distinct places, with three distinct symptoms:

• The input, before the chain: the GAIN ring blinks three times. Play softer or turn down your guitar. Nothing in the pedal helps.
• The outputs: the LEVEL ring blinks three times. Lower LEVEL, or lower per-preset capture volume.
• Inside the chain, when the IR is bypassed: no indicator shows it, because the converters aren’t clipping. It sounds harsh and gritty, and it is the commonest complaint when running into a real amp.

the two volume controls

LEVEL on the top panel is a global master output for the 1L and 2R jacks. It applies to everything.

Per-preset level is somewhere else entirely: hold CAPTURE for two seconds to open the Capture Volume view. LEVEL then sets that preset’s own level, from −24 dB to +12 dB, defaulting to 0.0. AMOUNT in the same view sets the Input Gate.

Turning LEVEL and saving stores nothing per preset, because LEVEL is global.

how to level-match four presets

Do this once, at playing volume. Level-matching at low volume does not survive a band.

1. Pick one factory preset as your reference and leave it alone.
2. Set the global LEVEL knob where you want it overall, then don’t touch it again during this process.
3. For each of your four presets, hold CAPTURE for two seconds and adjust capture volume until it sits level with the reference, then save it.
4. Check with your guitar volume at playing position, not full.
5. Re-check your cleanest and your highest-gain preset against each other last. They’re the pair most likely to be mismatched.

why cloud captures are never level

There are two reasons.

First, uploaders gain-stage differently. There’s no normalization on Cortex Cloud.

Second, perceived loudness follows spectral density, not peak level. A clean capture and a saturated high-gain capture can measure the same and sound nothing alike, because the high-gain one is far denser. Match by ear, not by meter.

output level for the destination

There is no output-mode switch on this device, so there’s no instrument-versus-line setting to get right. Everything is done with LEVEL plus per-preset capture volume.

For front of house, ask for line level and set LEVEL so your loudest preset sits below clipping with headroom. For a DAW, leave a good margin—you’re recording at 24-bit and have nothing to gain from a hot signal.

The outputs are balanced TRS. A plain TS instrument cable costs you around 6 dB and some clarity.