Positive Grid has introduced a new combo amp that lets users type an idea, snap a photo, or record a sound to build a complete tone from it in seconds.
REACTOR features Amp Intelligence, a new kind of engine with over 1 million tones analyzed and over 200 amp designs studied at the circuit level.
REACTOR is powered by Amp Intelligence™— a new type of sound engine that builds guitar tone on demand. It enables players to go from idea to a finished, playable sound in seconds. Instead of searching through tone presets or manually dialing in sounds, players can describe a tone, upload a recording, or share an image. REACTOR responds by building a complete signal chain or even a custom amp in real time, delivering a full, rich sound that feels dynamic at any volume.
REACTOR also provides flexible tools for shaping tone. The amp’s top panel features a full array of controls for fast adjustments, while its exclusive mod switches and a dedicated app provide deeper tone design options.
As a performance amp, REACTOR combines a powerful, high-volume 1×12” platform with selectable wattage and professional connectivity, enabling it to move easily from rehearsals and live performance to home practice and recording.
The optional REACTOR Control footswitch enables hands-free performance control.
REACTOR features
- 24 amp models, 27 effects (8 simultaneously).
- Selectable wattage (1w, 25w, 50w/100w).
- Custom 12 inch speaker.
- USB-C direct recording at 48kHz / 24-bit.
- Robust hardware controls for on-the-fly tweaking.
- FX Loop, MIDI support, optional foot controller (sold separately).
The 50W REACTOR is available for $349 USD, while the 100W edition is priced $449 USD. The option REACTOR Control foot controller is $149 USD.
More information: Positive Grid

