Pricing and availability
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Store
Reviews
Price
Average Price: $258
High-end/Boutique
$79
$180+
Price Tier
Budget
Standard
High-end
Price History
Based on price data from 6 merchants for "Positive Grid Spark". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Unleash your inner rockstar with the Positive Grid Spark, a 40W smart amplifier that delivers an immersive sound experience in a compact package. Perfect for jamming, practicing, and recording, the Spark is equipped with two custom-designed 4-inch speakers that provide a powerful and crystal-clear audio output. What sets this amp apart is its integration with the award-winning Spark app, which offers a treasure trove of over 10,000 guitar and bass amp presets, perfect for any style or genre.
Using the app, you can harness Smart Jam technology to create real-time backing tracks with AI-generated bass and drums that match your playing. Whether you're learning new songs or crafting your own, the Spark app provides automatic chord displays and lets you loop sections or slow down tempos to perfect your technique. Plus, with voice command capabilities, you can summon tracks or tones without ever lifting a finger.
The Spark's BIAS-powered engine is designed for hyper-realistic amp modeling, offering a variety of vintage and modern tones. Its intuitive interface includes bass, mid, and treble tone stack controls, alongside mod, delay, and reverb effects. The built-in USB audio interface makes it simple to record your sessions directly into your DAW, while the Bluetooth connectivity allows you to stream high-quality music or backing tracks.
With the Positive Grid Spark, creativity knows no bounds—whether you're a home studio enthusiast or a gigging musician on the go.
Key Features:
- 40W power output through twin 4-inch speakers
- Smart Jam technology with AI-generated backing tracks
- Over 10,000 BIAS-powered amp and effect presets
- Real-time chord display and tempo control features
- Voice command functionality for hands-free operation
- Bluetooth streaming and USB audio interface for recording
- Built-in bass, mid, treble, mod, delay, and reverb controls
- Compatible with electric, acoustic, and bass guitars
Product specs
| Type | Solid State Stereo |
| Number of Channels | 4 x Programmable Presets |
| Output Power | 40W Class D |
| Speaker Size | 2 x 4" Custom Speakers, Bass Reflex Port |
| Reverb | Yes |
| Effects | 40 x Built-in FX: Distortion, Modulation, Delay, Compressor, Noise Gate and more ; Spark App FX expansion |
| Amp Modeling | 30 x Amp Models, Spark App preset expansion |
| EQ | 3-band EQ |
| Inputs | 1 x 1/4" (guitar/bass/acoustic), 1 x 1/8" (aux in) |
| USB | 1 x Type B |
| Bluetooth | Yes |
| Headphones | 1 x 1/8" |
| Features | Tuner, Tap Delay |
| Computer Connectivity | USB (1 x 2) |
| Software | Spark App (iOS/Android) |
| Construction Material | Black Vinyl |
| Power Source | 19V DC power supply (included) |
| Height | 7.48" |
| Width | 13.78" |
| Depth | 7.08" |
| Weight | 11.46 lbs. |
FAQs
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What kind of power supply does the Positive Grid Spark require?
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The Positive Grid Spark requires a 19V DC power supply, which is included with the amplifier.
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Can the Positive Grid Spark be used for both electric and acoustic guitars?
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Yes, the Positive Grid Spark is designed to work with electric, bass, and acoustic guitars, offering versatile amp modeling and effects suitable for each type.
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Does the Positive Grid Spark have built-in effects?
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Yes, the Positive Grid Spark features 40 built-in effects, including distortion, modulation, delay, compressor, and noise gate, with additional effects available via the Spark App.
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Is the Positive Grid Spark suitable for home practice?
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Yes, the Positive Grid Spark is a 40-watt combo amp with compact dimensions and custom speakers, making it ideal for home practice while providing a full range of tones.
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How does the Positive Grid Spark connect to your devices?
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The Positive Grid Spark connects to devices via USB and Bluetooth, allowing for easy integration with the Spark App on iOS and Android for expanded functionality.
Videos
Darrell Braun Guitar
I FINALLY Play the Positive Grid Spark...But Should You Buy One?
Reviews
PROS
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Built-in virtual pedal board eliminates need for extra gear
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Smart Jam feature creates custom backing tracks
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Lightweight and compact design for easy portability
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Access to over 10,000 downloadable tones via Tone Cloud
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Great for practicing at home with a band feel
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Easy app integration offers extensive sound customization
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Versatile for both electric and acoustic guitars
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Bluetooth functionality for music streaming and control
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Auto chord recognition for easy song learning
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High-quality sound from 4-inch stereo speakers
CONS
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Significant bass heaviness requires adjustment
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Volume control inconsistency when switching channels
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No built-in battery limits portability
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Auto chord recognition struggles with complex chords
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Software takes time to get used to
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Inconsistent Bluetooth pairing with some devices
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Latency issues when connecting via USB to PC
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Limited expansion options compared to other Positive Grid products
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Some presets and amp models need heavy tweaking
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Positive Grid Spark.
Comparisons
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The Positive Grid Spark is contrasted with the Yamaha THR10, which is praised for its natural sound and straightforward features, though it lacks certain effects like fuzz.
Source -
The Spark's modeling capabilities are considered less refined compared to the Yamaha THR10ii when using the same pair of Audio Technica M50 headphones.
Source
Features and functionality
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The Spark can be enhanced by connecting it to an external FRFR cabinet or a PA, which significantly improves its sound projection.
Source
Critic Reviews
4.5 out of 5
Based on 2 Reviews and 19 Ratings
16540
Not for me
Bluetooth constantly would disconnect in the middle of playing and that involves having to reset the amp to get my phone to connect again. Having to stop playing a song to turn off a delay or drive without investing more money into their own footswitch. ToneCloud is a joke with most of them having gain and volume maxed out to blow out your eardrums. I owned mine less than a year and sold it to buy a real tube amp.
150
Versatile smart amp
Good practice amp that takes physical pedals well (minus fuzz). Less than stellar build quality
Artist usage
Add artist
Keith Richards is seen using the Positive Grid Spark amplifier while trying out his custom shop V guitar
As he wrote in the description of this video, where the amp is also clearly visible startimg at 0:00 and shown throughout: "Using the "Wooden Bridge" preset from the Spark smart amp by Positive grid."
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Positive Grid Spark, it is most commonly used with the following gear.
Community setups
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