Two versions:
• REACTOR 50 (50W)
• REACTOR 100 (100W)

Both REACTOR 50 and REACTOR 100 are powerful enough for most playing situations, including rehearsal and live use.

REACTOR 50 is more compact and ideal for home, studio, and smaller spaces, while still delivering plenty of volume when needed.

REACTOR 100 provides additional headroom and output, making it better suited for louder environments, clean tones at higher volumes, and larger stages.

If you don't need maximum volume or headroom, REACTOR 50 will cover most use cases. If you want more power and flexibility for bigger setups, REACTOR 100 is the better choice.

• REACTOR 50 → 50W output, 4 ohm speaker
• REACTOR 100 → 100W output, 8 ohm speaker

The main difference is power and headroom for different environments. Both deliver more than enough volume for practice and live performance.

Availability varies by region. Check Positive Grid's website or authorized retailers.

REACTOR creates tones by turning your input into a complete amp and effects setup you can play immediately.

You start by providing an input — for example:
• Describing a sound (Text to Tone)
• Playing or uploading audio (Audio to Tone)
• Using an image (Image to Tone)

REACTOR then analyzes that input and generates an amp configuration (gain structure, EQ, response, feel), a matching effects chain, and an optimized signal chain — all in seconds.

From there, you can refine the tone by describing changes or adjusting controls manually. You can also explore REACTOR's full gear library, build your own signal chains, and save or share them.

You can take a sound you like — from a song, a recording, or anything you're listening to — and turn it into something you can play.

REACTOR listens to the audio and analyzes the guitar tone — how much gain it has, how it's shaped, and what effects are being used. It then builds a matching amp and effects setup and loads it instantly, so you can start playing that type of sound right away.

For example, if you hear a tone in a song and think "that's exactly what I want," you don't have to guess how to build it — REACTOR gives you a playable version in seconds, which you can then refine to fit your own style.

Yes. Once a tone is created, you can keep shaping it without starting over.

You can describe what you want to change — for example, "more gain," "less bass," or "brighter" — and REACTOR updates the existing tone while preserving its character. You can also fine-tune it manually using amp and effect controls.

This makes refinement feel like a continuous process, where you can quickly move closer to the sound you have in mind instead of rebuilding it step by step.

You describe the sound you want in natural language — for example, "warm blues with edge," "tight modern rhythm," or "ambient clean with long reverb" — and REACTOR turns that description into a complete, playable tone.

It interprets your input and generates an amp configuration and effects chain to match — including gain, EQ, and effects like drive, modulation, delay, and reverb — so you can hear the result immediately.

You don't need to think in terms of amp models or technical settings. You can describe tone the way you hear it, and then refine it further if needed — for example, "less bass," "more gain," or "brighter."

You can start from a visual idea instead of a sound. Take or upload a photo — a pedalboard, an amp setup, a stage, or even something more abstract — and REACTOR turns it into a playable tone.

It analyzes the visual elements and translates them into an amp and effects setup, so you can hear how that image might sound. You can then refine the result into your own sound.

Push, Smooth, and Heat are intelligent tone mod controls on the top panel powered by REACTOR's Amp Intelligence. Instead of adjusting individual parameters, they shape your sound based on the tone you're using:

• Push (up): brings your tone forward with more bite and presence — perfect for cutting through a mix
• Smooth (down): softens the attack for a more laid-back feel
• Heat (5-stage toggle): fine-tune the feel without significantly affecting volume. Crank up the heat for a faster, tighter attack with richer harmonics, or dial it down for a smoother, more elastic feel that stays connected to your fingers.

Because they adapt to the current tone, each control responds differently depending on the sound you've created — giving you fast, musical results without detailed tweaking.

Yes. REACTOR allows you to create your own amp configurations instead of relying only on fixed models. You can generate an amp from an idea using Text to Tone, Audio to Tone, or Image to Tone, then refine it by adjusting gain structure, EQ, and feel. You can combine it with your preferred effects chain and save the result as a custom amp or preset — and share it on ToneCloud®.

Yes. You can use onboard controls or the app for deeper editing.

The REACTOR app is where you create, control, and refine your sound. It allows you to:
• Create tones using Text to Tone, Audio to Tone, and Image to Tone
• Access a full library of factory amps & effects
• Adjust your amp and effects in detail
• Build and reorder your signal chain
• Manage and save presets and custom amps
• Access and share tones on ToneCloud®
• Use built-in tools like the tuner

It gives you full control over your sound, from quick ideas to detailed adjustments.

Yes. You can browse, download, and share tones with the community.

Yes. It's designed for home, studio, and stage.

Yes. REACTOR includes selectable power levels, including a 1W mode, so you can play at home-friendly volumes without sacrificing tone. The amp is designed to maintain the same character, response, and feel across power settings, so your sound stays consistent whether you're playing quietly or at full volume.

Yes. REACTOR includes an FX loop, so you can integrate external pedals directly into your signal chain.

For performance control, REACTOR also supports REACTOR Control, a dedicated foot controller that lets you switch presets and toggle effects hands-free.

Yes. REACTOR supports MIDI in.

Yes. REACTOR includes a headphone output for silent practice.

No. It is a separate product line.

No. REACTOR does not include a built-in looper in the amp or app. It is designed around tone creation and performance. If needed, you can use an external looper pedal via the FX loop.

Yes. REACTOR supports REACTOR Control, with both wired and wireless operation.