Positive Grid REACTOR 50W AI-Powered Combo Amplifier

REACTOR is a 1x12" combo amp powered by Amp Intelligence — a sound engine that builds tone the way you imagine it — from prompts, photos, and recordings. Create signal chains on demand, or build amps that don't exist anywhere else. 50W or 100W with selectable wattage for consistent tone at any volume.

REACTOR 50

• Power: 50W / 25W / 1W
• Speaker: 12" custom-voiced
• Best for: Feel and immediacy

YOUR IMAGINATION DESERVES AN AMPLIFIER.

AMP INTELLIGENCE
A new kind of engine with over 1M tones analyzed and hundreds of amp designs studied at the circuit level. Now you can build dynamic tone from the ground up.

TONE CAPTURE
Type an idea, snap a photo, or record a sound. REACTOR builds your complete tone from it in seconds.

RIG-READY
50W and 100W models, custom 12" speaker, selectable wattage, and direct recording to any DAW.

TONE MEMORY
REACTOR remembers how you build tone and gets closer to your sound every time.

Powered by intelligence, built with classic amp thinking.

HOW REACTOR BUILDS SOUND.

REACTOR's Amp Intelligence decoded over 200 amp designs at the circuit level: gain stages, transformers, bias points, harmonic response, capturing the behavioral DNA of the most legendary amps ever built. So every tone it builds is grounded in how great amps actually work. The result is tone that breathes — dynamic, alive, and responsive to every note you play. Any tone you can imagine delivered on demand.

• 200+ AMPS DECODED
• 1000+ CIRCUIT PARAMETERS ASSIMILATED
• 1M+ TONES ANALYZED

INSTANT CONTROL.

One knob puts six amp categories at your fingertips. Classic Gain, EQ, and Master controls let you shape tone instantly from the panel. Six essential effects with dedicated buttons and onboard controls for instant tweaking.

Tap into two switches you won't find on any other amp. Push/Smooth takes you from laid-back rhythm to cutting lead without touching distortion. Heat +/- adjusts feel and harmonics without significantly changing volume.

STAGE TONE AT ANY VOLUME.

Most amps thin out when you turn them down. REACTOR doesn't. Selectable wattage — 1W, 25W, or full power — keeps the tone full and present at any volume. A custom 12″ speaker in a wood cabinet delivers the warmth and presence you'd expect at stage volume, even in your bedroom. REACTOR sounds like itself wherever you play it.

CREATOR HUB

DESCRIBE WHAT YOU WANT. REACTOR delivers it — full, rich, and dynamic.

Powered by Amp Intelligence, Creator Hub's Tone Capture gives you three ways to build tone — using text prompts, images and audio. Start with your go-to favorites, or build something entirely new.

• Text - Describe an amp, an artist, or a sound in your own words. Amp Intelligence figures out the signal chain and makes it playable.
• Image - See an amp, a pedalboard, or a setup you want to try — or anything that inspires a sound. Snap it. Amp Intelligence turns any photo into a matching tone.
• Audio - Upload a track or record a sound. Amp Intelligence analyzes the source and builds a guitar tone to match, so the tone you hear in the recording is ready to play in seconds.

BUILD YOUR OWN AMPS.

Go further than matching existing gear. Combine characteristics, shape deep parameters, and create original amp voices that are entirely your own. Name them, save them, and share them on ToneCloud®.

TONE MEMORY

REACTOR remembers your prompts, inputs, adjustments, and settings. Every time you create, it starts closer to where you want to be.

REACTOR APP

WHERE TONE GETS CREATED. Customize tone in real time.

AMPS
24 amp models to start. Build as many of your own as you want. Full parameter access to adjust gain structure, EQ, bias, and voicing on any of them.

EFFECTS
Run eight simultaneous effect slots with full parameter control across Gate, Compressor, Drive, Modulation, Delay, Reverb, Wah and EQ. Insert the FX loop anywhere in the signal chain.

PRESETS
Save unlimited presets by song, session, or genre in the app. Load and access 8 onboard preset slots for instant recall directly from the amp panel.

TONECLOUD®
Browse and download tones and custom amps from other players, then share your own with the community.

SIGNAL PATH

Drag effects anywhere in the signal chain and insert external pedals through the FX loop at any point. Every routing change is immediate and audible.

SPECS

Audio Specifications

• Power Amp Rating: 50W
• Power Control: 50W / 25W / 1W
• Speaker: 1 x 12" custom speaker, 4Ω

Power

• Main Input Power: AC 100–240V, 50/60Hz

Controls & Connectivity

• Top Panel Controls: Power switch, Volume knob Preset Selector button, Bank Switch/Tuner button Amp Selector knob, Push/Smooth switch, Heat switch Amp Control knobs (Gain, Bass, Mid, Treble, Master) FX Level knob, FX ON/OFF buttons (GATE, MOD, COMP, DELAY, DRIVE, REVB), TAP button
• Rear Panel Controls: Bluetooth Pair button Power Control switch
• Onboard Presets: 8 Fully Customizable Presets On The Amp
• Onboard Tuner: Guitar Tuner With LED Display
• Amps & Effects: 24 Factory Amp Models (For electric guitar) 27 Effects (Noise Gate, Compressor, Distortion, Wah, Modulation, EQ, Delay, Reverb) Choose up to 8 effects, 1 FX Loop, and 1 amp model in the signal chain for each preset
• Wired Connectivity: 1/4" Guitar Input x 1 1/4" Power Amp Input x 1 1/4" REACTOR Control Input x 1 1/8" Headphone Output x 1 1/4" Line Output (Mono) x 1 1/4" FX Loop Send 1/4" FX Loop Return DIN 5-pin MIDI Input x 1
• Wireless Connectivity: Bluetooth 5.0
• USB Audio: USB audio interface for recording (macOS and Windows compatible) 1 In × 2 Out 24-bit / 48 kHz sample rate

Included in the Box

• REACTOR 50 Amplifier
• AC Power Cord
• Quick Start Guide
• Safety Instructions Card

Physical

• Dimensions: 18.11 x 9.45 x 16.46 inches (460 x 240 x 418 mm)
• Weight: 10.7 kg / 23.59 lb
• Grille Cloth: Custom Black/Silver

Software

• Mobile Apps: REACTOR App for iOS and Android
• REACTOR App Core Features: Deep Amp & Effects Editing and Preset Management Tone & Amp Creation from Text, Audio, or Images ToneCloud® for Sharing & Downloading Presets & Amps Dynamic Tone Personalization Tuner 24 Factory Amps, 27 Effects & 24 Factory Presets
• Accessories: REACTOR Control