Positive Grid Reactor 50W Combo Modelling Amp, Spark Link and Reactor Control

Reactor 50W Combo Modelling Amp

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 with selectable wattage for consistent tone at any volume. 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 model, 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™ tone engine 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.

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.

AUDIO TO TONE

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.

IMAGE TO TONE

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.

TEXT TO TONE

Describe an amp, an artist, or a sound in your own words. Amp Intelligence figures out the signal chain and makes it playable.

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. Deep control, instant changes. 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.

• USB-C Direct Recording
• Bluetooth Audio
• FX Loop
• Line Out + Cab Simulation
• MIDI In
• Headphone Out
• Power Amp In
• Selectable Wattage
• 8 Onboard Presets
• Built-in Tuner
• Wi-Fi + OTA Updates
• REACTOR Control Compatible
• 50W / 25W / 1W
• 12" custom-voiced Speaker

Spark Link Wireless System

Escape the cable clutter with the Spark LINK Wireless Guitar System. Its sleek design, ultra-low latency, and 70-foot (over 20-meter) range ensure a flawless, noiseless experience at home, on stage and beyond. Just plug in, power on, and play – no complicated setup required. Plus with 4 channels you can use multiple Spark LINKs at the same time. With a flexible hinged input plug, Spark LINK fits every guitar, performance, or practice situation.

Styled for Spark

Designed as the perfect companion for any Spark, Spark LINK seamlessly integrates with your Spark amp, enhancing your playing experience with its advanced wireless technology and consistent, professional sound quality. Of course, you can use it with any other gear, too.

Superior sound quality

Nothing matters more than how you sound. Experience the freedom of superior, reliable 2.4G wireless transmission technology. Spark LINK delivers 24-bit/48kHz audio quality across a vast frequency range of 20Hz to 20kHz, ensuring your music remains pure.

Revolutionary ultra-low latency

Spark LINK delivers ultra-low latency with our proprietary chipset. At under 3ms, Spark LINK's performance rivals any other wireless systems, ensuring your dynamic touch and feel is always in perfect sync.

Expansive wireless range

Enjoy up to 70ft (over 20 meters) of transmission range, allowing you to move freely and connect with your audience without any lag or signal drop. Get up close and personal with your front-row fans or simply play in your living room without cable clutter.

Intuitive. Easy.

Plug in, play, and switch channels with a single button. Spark LINK's user-friendly design allows for effortless connection on 4 exclusive channels, supporting up to four Spark LINK systems simultaneously. Now your whole band can go wireless.

Long playtime. Fast charging.

Play longer with Spark LINK's built-in rechargeable battery, offering up to 6 hours of playtime on a single charge. Included dual-end USB-C cables make recharging convenient and fast.

Adaptive design.

Designed to fit every guitar body and device, the 110° hinged plug of Spark LINK ensures a secure and versatile connection. Use it with any guitar, bass, acoustic guitar, or any instrument with an output.

A Spark essential.

Embracing the sleek, cohesive design of the Spark family, Spark LINK's stylish appearance not only matches Spark series products but also enhances the look of your instrument setup. Of course, you can also use it with any amp, guitar or piece of gear you want to connect to—any time, anywhere.

Frequency Response	20Hz ~ 20kHz
Sample Rate / Bit Depth	48kHz / 24-bit
Latency	< 3ms
Dynamic Range	96dB
Main Input Power	DC 5V/1A (USB)
Battery Type	500mAh rechargeable lithium battery
Play Time	Up to 6 hours of continuous use
Charging Time	2 hours
Top Panel Controls & Displays	Power button, LED indicator
Rear Panel Controls	USB Type-C charging port
Wireless Connectivity	Positive Grid proprietary wireless audio (2.4GHz)
Transmission Range	Up to 70 feet line-of-sight (21 meters)
Compatible Channels	4 channels
Box Contents	Spark LINK TX (Transmitter)
	Spark LINK RX (Receiver)
	USB A to C Cable (1.5 meters)
	Quick Start Guide
	Safety Instructions
Spark LINK TX	L x H x W : 107.3mm x 27.7mm x 25.4mm (4.2in x 1.1in x 1in)
Spark LINK RX	L x H x W : 107.3mm x 27.7mm x 25.4mm (4.2in x 1.1in x 1in)
Weight	Spark LINK TX: 39g (0.09lbs) / Spark LINK RX: 38g (0.08lbs)

Reactor Control

Hands-Free Command

REACTOR Control is designed exclusively for REACTOR guitar amps, giving you seamless, real-time control without breaking your focus. Switch presets, toggle effects, or engage the FX loop with six responsive footswitches, and add an expression pedal for dynamic control over volume, wah, and more. Use it wirelessly for complete freedom, or connect by cable for ultra-stable performance. When your amp can do more, so can you.

Total Control

Wired or wireless. This is direct integration. REACTOR Control* is engineered specifically for REACTOR amps. Connect via Bluetooth for full wireless freedom or connect directly for ultra-low latency. No complex setup. No compatibility
guessing. *REACTOR Control and accessories sold separately.

Pair it. Plug it in. Play.

Six Switches. Out of the box, REACTOR Control is ready to go. Seamlessly switch between two
pre-programmed modes.

Preset Mode

Jump between tones instantly. Move through banks. Hit the FX loop without hesitation.

Effect Toggle Mode

Turn individual effects on and off inside a preset.

Six steel footswitches. LED indicators. Clear visual feedback under stage lights. Add an expression pedal for volume, wah, or assignable control through the REACTOR app.

Built to Be Stepped On

Compact. Durable. Stage-ready.

• Rugged chassis
• USB-C rechargeable battery with 40+ hours of play time
• Clear battery and wireless status indicators
• Lightweight, pedalboard-friendly footprint
• REACTOR creates the tone. REACTOR Control unleashes it.

Power

MAIN INPUT POWER - DC 5V/2A (USB)
BATTERY TYPE - Built-in 750mAh rechargeable lithium-ion battery
CHARGING TIME - Approx. 7.5 hours
PLAY TIME - 40+ hours (varies by usage)

TOP PANEL CONTROLS & INDICATORS

6 x Steel Footswitches
6 x Footswitch Indicators
1 x Power Indicator
2 x Connection Indicators

REAR PANEL CONTROLS

Power Button
Function Button

DEFAULT PROFILES

Profile 1 - Preset Mode (To switch the REACTORamp presets)
Profile 2 - Effect Mode (To toggle the effects)

WIRED CONNECTIVITY

1 x 1/4” TRS output (to REACTORamp)
1 x 1/4” Expression Pedal Jack
1 x USB-C Port

WIRELESS CONNECTIVITY

Bluetooth 5.0

WIRELESS TRANSMISSION RANGE

Up to 55 feet (17 meters) line-of-sight