Nota Valve

Nota Valve is an amp and cabinet: plug a guitar or bass straight in, or use it for grit on keys, vocals and drums.

Signal flow: pre-filter → Bright → preamp (oversampled) → tone stack → Deep → cabinet → low / high cut → make-up → output → gate → mix.

Layout: the Stage column on the left (Gain and Output faders), a centre panel with three tabs, a right panel (Cabinet / Output) and a status line.

Amp

Control	What it does
Model	Clean, Boost, Blues, Rock, Lead, Heavy, Bass
Gain	Preamp drive
Bass · Middle · Treble · Presence	The tone stack; Mid freq sweeps the middle
Bright · Deep	Switches for extra top and extra low end
Even only	An even-harmonics-only preamp — warm instead of gritty

The graph shows the tone stack’s response against flat.

Cab

Control	What it does
Cabinet	Match (follows the model), 1×12 Open, 2×12 Combo, 4×12 Closed, 1×15 Bass
Mic	Dyn (dynamic), Cond (condenser) or Ribbon
Distance · Axis · position	How far the mic is, on or off axis, at the Cap or the Edge of the speaker
Low cut · High cut	Trim the cabinet’s extremes

The graph shows this cabinet’s response against the mic on axis at the cap.

Harmonics

The harmonics the preamp adds right now — see how Gain and the model change the character.

Output

Output, Mix (dry / wet), Auto comp (keeps the level steady as Gain changes), the Gate (keyed on the input, to stop hiss between notes), Oversampling, and the cabinet on / off.

Presets

31 factory presets: clean (Clean Combo, Jazz Box, Glassy Clean, Funk Snap, Country Twang), blues (Blues Breakup, Edge of Breakup, Texas Blues, Smooth Blues Lead, Even Warmth), rock (Rock Crunch, Classic Stack, Arena Rhythm, Indie Jangle, Garage Fuzz), lead (Lead Sustain, Singing Lead, Shred Lead), heavy (Heavy Chug, Modern Metal, Doom Sludge, Djent Tight), bass (Bass Amp, Bass Growl, Bass DI Clean, Bass Drive Blend) and beyond guitar (Lo-Fi Radio Amp, Keys Grit, Vocal Tube Color, Drum Crunch, Parallel Grind).