Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated .

Sweetwater
4.0 (93)
$299.00
Guitar Center
4.0 (64)
$299.00
Amazon
4.7 (8631)
$299.00 New
$254.15 Used (Good)
Reverb
4.0 (75)
$198.81 New
$125.00 Used
Musician's Friend
4.0 (11)
$299.00
Thomann
4.6 (90)
$255.00 $249.00 $6.00 · All time low

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.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

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

What kind of power supply does the Positive Grid Spark require?

The Positive Grid Spark requires a 19V DC power supply, which is included with the amplifier.

Can the Positive Grid Spark be used for both electric and acoustic guitars?

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.

Does the Positive Grid Spark have built-in effects?

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.

Is the Positive Grid Spark suitable for home practice?

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.

How does the Positive Grid Spark connect to your devices?

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.

Darrell Braun Guitar

Darrell Braun Guitar

I FINALLY Play the Positive Grid Spark...But Should You Buy One?

Video thumbnail for I FINALLY Play the Positive Grid Spark...But Should You Buy One? by Darrell Braun Guitar

I FINALLY Play the Positive Grid Spark...But Should You Buy One?

Darrell Braun Guitar

Darrell Braun Guitar

Video thumbnail for The Smartest Practice Amp | Positive Grid SPARK by Rabea Massaad

The Smartest Practice Amp | Positive Grid SPARK

Rabea Massaad

Rabea Massaad

Video thumbnail for Will Lee & Pete Like These Little Amps? - Positive Grid Spark Range Review by Andertons Music Co

Will Lee & Pete Like These Little Amps? - Positive Grid Spark Range Review

Andertons Music Co

Andertons Music Co

Video thumbnail for Getting Started with the Spark Amp by Positive Grid

Getting Started with the Spark Amp

Positive Grid

Positive Grid

Video thumbnail for Positive Grid Spark 40 - This Mini Amp Is Mind Blowing! by The Studio Rats

Positive Grid Spark 40 - This Mini Amp Is Mind Blowing!

The Studio Rats

The Studio Rats

Video thumbnail for Positive Grid Spark 40: Is it the Best Guitar Amp Ever? by 8 Minute Axe

Positive Grid Spark 40: Is it the Best Guitar Amp Ever?

8 Minute Axe

8 Minute Axe

Reviews

PROS

  • Built-in virtual pedal board eliminates need for extra gear

  • Smart Jam feature creates custom backing tracks

  • Lightweight and compact design for easy portability

  • Access to over 10,000 downloadable tones via Tone Cloud

  • Great for practicing at home with a band feel

  • Easy app integration offers extensive sound customization

  • Versatile for both electric and acoustic guitars

  • Bluetooth functionality for music streaming and control

  • Auto chord recognition for easy song learning

  • High-quality sound from 4-inch stereo speakers

CONS

  • Significant bass heaviness requires adjustment

  • Volume control inconsistency when switching channels

  • No built-in battery limits portability

  • Auto chord recognition struggles with complex chords

  • Software takes time to get used to

  • Inconsistent Bluetooth pairing with some devices

  • Latency issues when connecting via USB to PC

  • Limited expansion options compared to other Positive Grid products

  • 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

  • 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

  • The Spark can be enhanced by connecting it to an external FRFR cabinet or a PA, which significantly improves its sound projection.

    Source

User experience

  • Some owners find the Spark to sound better through headphones than its built-in speakers, particularly for late-night practice sessions.

    Source

Critic Reviews

Positive Grid Spark review | Guitar World

guitarworld.com

The Positive Grid Spark redefines desktop amplification with its impressive Smart Jam and Auto Chords features, providing musicians with an intuitive practice tool that seamlessly integrates modeling technology for authentic tones. With a compact design and extensive connectivity options, it’s both powerful and portable, making it a fantastic value for home players. However, while the Spark excels in functionality and sound, some users may find the extensive tonal options overwhelming. Despite this minor drawback, its ability to analyze songs and create backing tracks truly sets it apart as a game-changing amp for learning and inspiration.

positive

Positive Grid Spark 40

soundonsound.com

The Positive Grid Spark 40 is a stylish, compact amp packed with impressive features, including Bluetooth connectivity and a vast tone library. While it excels in versatility and offers great modeling capabilities, the sound from its built-in speakers tends to be overly bass-heavy and muffled, requiring significant EQ adjustments or modifications to achieve a balanced tone. Additionally, the lack of a dedicated line output or footswitch compatibility limits its practicality for some users. Ultimately, it’s a well-designed amp that shines in many areas but stumbles with its audio output, making it a mixed bag for potential buyers.

Positive Grid Spark Review | GuitarPlayer

guitarplayer.com

Spark from Positive Grid redefines practice amps with impressive sound quality and innovative features, like its seamless app integration for auto chord recognition and jamming accompaniment. The amp's modeling capabilities shine, delivering a wide array of tones and effects that cater to various musical styles. However, the auto chord feature can falter with complex progressions, and volume jumps between presets can be jarring. Despite these quirks, the Spark’s versatility as a practice, recording, and learning tool makes it a standout choice for guitarists looking to enhance their skills and creativity.

positive
Add

4.5 out of 5

Based on 2 Reviews and 19 Ratings

5 star
4 star
3 star
2 star
1 star
evensteven2120

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.

Roles:
Genres:
ryen_smorczewski

Versatile smart amp

Good practice amp that takes physical pedals well (minus fuzz). Less than stellar build quality

Artist usage

Add artist
See how Keith Richards uses Positive Grid Spark

Keith Richards

Singer, Guitarist

The Rolling Stones

...
Verified via Instagram

Keith Richards is seen using the Positive Grid Spark amplifier while trying out his custom shop V guitar

See how Tim Henson uses Positive Grid Spark

Tim Henson

Guitarist, Music Producer

Polyphia

...
Verified via YouTube

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."

See how Tyler Larson uses Positive Grid Spark

Tyler Larson

Guitarist, Podcasters & Streamers

...
Verified via YouTube

IN this video he uses this amp to demonstrate guitar tones

See how Nik Nocturnal uses Positive Grid Spark

Nik Nocturnal

Guitarist, Podcasters & Streamers

GRAYSTONE

...
Verified via YouTube

In this video nick recreates tones using the positive grid spark

See how Andrew Baena uses Positive Grid Spark

Andrew Baena

Guitarist, Music Producer

Carcosa

...
Verified via YouTube

In this video andrew demos the positive grid spark

See how Sanjay C uses Positive Grid Spark

Sanjay C

Singer, Keyboardist

...
Verified via YouTube

At 0:01 you could see him using the spark amp with the Strat

See how Y.K.C uses Positive Grid Spark

Y.K.C

Guitarist, Keyboardist

coldrain

...
Verified via Ikebe MUSIC INFORMATION | 池部楽器店のニュースをお届けします!

Y.K.C uses the Positive Grid Spark, as confirmed by a post on the Instagram account イケシブ|IKEBE SHIBUYA【produced by 池部楽器店】.

See how Danilo Vicari uses Positive Grid Spark

Danilo Vicari

Guitarist

...
Verified via YouTube

In Danilo’s 2020 studio tour, a positive grid spark is seen in the background on the right around 2:21

Used With

Based on how musicians on Equipboard use Positive Grid Spark, it is most commonly used with the following gear.

Orange Micro Dark
Orange Micro Dark Guitar Amplifier Heads
2
Pearl Hi-Hat Stand
Pearl Hi-Hat Stand Hi-Hat Stands
1
Samson R21
Samson R21 Dynamic Microphones
1
Remo Pinstripe Coated
Remo Pinstripe Coated Drum Set Accessories
1
M-Audio Oxygen 49 MK4
M-Audio Oxygen 49 MK4 MIDI Keyboard Controllers
1
Blue Spark SL
Blue Spark SL Condenser Microphones
1
Yamaha HS5
Yamaha HS5 Active & Passive Monitors
1
Marshall MG10CD
Marshall MG10CD Combo Guitar Amplifiers
1
ESP E-II Eclipse FM STBLK
ESP E-II Eclipse FM STBLK Solid Body Electric Guitars
1
Schaller S-Locks Strap Locks
Schaller S-Locks Strap Locks Straps & Strap Locks
1

Community setups

Show yours
aviera78

aviera78

Gear IQ 112

szilard_antal

szilard_antal

Gear IQ 147

alex_eloi

alex_eloi

Gear IQ 288

lloydys

lloydys

Gear IQ 1262

S

scanna

Gear IQ 91

yann_b_good

yann_b_good

Gear IQ 177

alex_eloi

alex_eloi

Gear IQ 288

thetrespasers

thetrespasers

Gear IQ 223

luis_dj

luis_dj

Gear IQ 1527

D

dg_s

Gear IQ 231

4 alternative and related items for Positive Grid Spark, curated by the Equipboard community.

More Positive Grid Mini Guitar Amplifiers

Accessories & Related Items

Gear Guides

  • Added to Equipboard on by

    pmoll
    pmoll

    Gear IQ 66