Your Spark tones, organized, on the amp in one click.
SparKo is a Windows app for Positive Grid Spark amps. Keep hundreds of tones in a searchable library, push any of them straight to the amp over Bluetooth, tune knobs live, and let AI draft new tones for the songs you play.
Get SparKofree edition Get SparKo Pro ()special launch pricing
Features
SparKo (Free Edition)
Library and setlists
Tag tones by band and album, build setlists, search instantly. Backs up everything as plain files you own.
Bluetooth push and pull
Connects directly to the Spark 2 and Spark GO (Spark 40 and Mini untested). Push a tone into any of the amp's slots (P) or pull what the amp is playing into the library (L); switch slots with 1-8. Keyboard shortcuts for everything, and full-screen mode with Alt+Enter.
SparKo Pro everything in Free Edition, plus
Live Tuning
Turn a knob in SparKo and hear it on the amp instantly (T to enter). Save to the slot and the library in one press (S).
Audition tones hands-free
Loop a dry guitar clip from the PC into the amp and hear any tone without picking up the guitar: built-in strums, riffs and chugs, or your own exports of the song the tone is for.
AI tone generation
Describe a song or a sound; SparKo asks your own OpenAI, Claude, Gemini, xAI or DeepSeek account for a tone and loads it, ready to tweak.
Pricing
| Feature | Free | Pro special launch pricing |
|---|---|---|
| Library, tags, setlists, search | Yes | Yes |
| Bluetooth connect, push and pull tones | Yes | Yes |
| Live Tuning | 14-day trial | Yes |
| AI tone generation | 14-day trial | Yes |
| Audition tones without a guitar | 14-day trial | Yes |
| Computers per license | - | 2 |
| Updates | All | 12 months included, keep the version you have forever |
Try before you buy: the free edition includes a 14-day trial of every Pro feature, so you can make sure Pro works with your amp and your computer first. Questions or problems? Contact support.
Prices in USD. Secure checkout by Stripe: cards, Apple Pay, Google Pay and Link. Your license key appears on the confirmation page right after payment (and by email).
Download
SparKo is a portable app: unzip it anywhere and run SparKo.exe. Windows 10 or 11, 64-bit, a Bluetooth adapter, and a Positive Grid Spark amp. Updating: unzip the new version over the old folder; your Spark_Library is kept.
Download the latest versionSparKo for Windows (zip)
Already bought Pro and lost your key? Recover it here.
Release notes
Need an earlier version? Contact support and we will send it.
First run: Windows may show "Windows protected your PC" for a newly downloaded app. Click More info, then Run anyway. The app is unsigned for now; the source of the Bluetooth bridge is included in the zip.