Pricing and availability

We compare 600+ stores and found this item at 6 stores. Prices updated .

Sweetwater
4.0 (57)
$299.00
Guitar Center
4.0 (64)
$299.00
Amazon
4.7 (8631)
$299.00
Reverb
4.0 (75)
$197.29 New
$141.00 Used
Musician's Friend
4.0 (11)
$299.00

Average Price: $262

Budget/Beginner

$300

$701+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Positive Grid Spark Practice Amp". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Discover a new dimension of musical creativity with the Positive Grid Spark Practice Amp. This smart amp combines groundbreaking technology with a compact design, making it an essential tool for guitarists seeking versatility and inspiration. The Spark is not just an amplifier; it's an all-encompassing musical companion that enhances practice, performance, and production. With 40 watts of power coursing through twin 4-inch custom speakers, the Spark delivers vivid sound that will transform any room into your personal sound studio.

The Spark app, powered by Positive Grid's acclaimed BIAS amp modeling technology, offers access to over 10,000 tone presets, ensuring you can explore a vast library of sounds tailored to any genre or style. Whether you're jamming with virtual bandmates or practicing your favorite songs, the app's Smart Jam technology generates bass and drum parts that adapt to your playing, making solo practice sessions feel like a full-band experience.

The intuitive Spark app also imports songs from streaming services, providing real-time chord displays and practice tools like tempo adjustment and looping. With its built-in USB audio interface, you can seamlessly record your sessions into a DAW, making it the perfect choice for musicians who want to capture and share their creative moments.

Key Features:

  • 40W output with twin 4-inch custom speakers
  • BIAS-powered amp modeling with over 10,000 presets
  • Smart Jam technology for auto-generated bass and drum accompaniment
  • Real-time chord display and practice tools via the Spark app
  • USB audio interface for direct recording to DAWs
  • Compatible with electric, acoustic, and bass guitars
  • Bluetooth connectivity for app control and music streaming
  • Built-in tone stack, mod, delay, and reverb controls
  • Compact and portable design for easy transport

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 Pearl Textured Vinyl
Power Source 19V DC power supply (included)
Height 7.48"
Width 13.78"
Depth 7.08"
Weight 11.46 lbs.

FAQs

Is the Positive Grid Spark Practice Amp suitable for small gigs or just home practice?

The Positive Grid Spark Practice Amp is primarily designed for home practice with its 40-watt output. While it can handle small, intimate settings, it may not have enough volume for larger gigs with a full band.

Can the Positive Grid Spark Practice Amp be used without the Spark app?

Yes, the Spark amp can function as a standalone amplifier without the Spark app. However, to access its full range of features, like amp modeling and effects customization, the app is necessary.

What kind of instruments can the Positive Grid Spark Practice Amp accommodate?

The Positive Grid Spark Practice Amp is versatile, supporting electric, bass, and acoustic guitars. It features a 1/4" input for instruments and an additional 1/8" aux input for other audio sources.

How many effects and amp models are available on the Positive Grid Spark Practice Amp?

The amp comes with 40 built-in effects including distortion, modulation, and delay, and offers 30 amp models. Additional effects and presets can be accessed through the Spark app.

Does the Positive Grid Spark Practice Amp have Bluetooth connectivity?

Yes, the Positive Grid Spark Practice Amp features Bluetooth connectivity, allowing you to stream music from your device and play along with your favorite tracks.

What are the dimensions and weight of the Positive Grid Spark Practice Amp?

The Positive Grid Spark Practice Amp measures 7.48" in height, 13.78" in width, and 7.08" in depth, with a weight of 11.46 lbs, making it compact and portable for easy transport.

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 YAMAHA THR30II vs Positive Grid Spark! - Which one is the Best Practice Amp? by Darrell Braun Guitar

YAMAHA THR30II vs Positive Grid Spark! - Which one is the Best Practice Amp?

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 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 Amp Review! Best Practice AMP there is! by Krisinized

Positive Grid Spark Amp Review! Best Practice AMP there is!

Krisinized

Krisinized

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Positive Grid Spark Practice Amp.

Use cases and applications

  • The Spark Live serves well as a portable Bluetooth speaker, especially in outdoor settings like poolside or garage workspaces, due to its global EQ adjustments.

    Source
  • Users in apartment settings appreciate the Spark Go for its headphone practice capabilities, minimizing noise disturbance.

    Source
  • The amp functions well as a Bluetooth speaker for backing tracks during practice, offering convenience and versatility.

    Source

Features and functionality

  • The AI drummer and bass in the Spark app are lauded for their ability to intuitively follow user rhythms in real-time.

    Source
  • The Spark 40 received a firmware update that significantly reduced excessive bass, improving sound balance.

    Source
  • It is noted that the fixed FX slots limit flexibility, as modulation cannot be reordered and an EQ pedal requires sacrificing modulation options.

    Source
  • The Spark amp includes stereo speakers with effects like modulation and delay, enhancing practice sessions with more immersive sound.

    Source
  • The amp allows for vocal and acoustic practice through separate channels, with channel 2 offering superior acoustic sound quality compared to channel 1.

    Source
  • The Spark Live's kickstand is praised for effectively directing sound towards the player's ears, enhancing the listening experience.

    Source
  • The Spark lacks a foot controller, necessitating manual patch changes on the amp or through the app during sessions.

    Source

Value and pricing

  • The Spark Mini and Go are noted for their affordability and feature set, surprising users with their performance given the low cost.

    Source

User experience

  • The Spark Go is praised for its portability and quick setup, making it especially appealing for spontaneous outdoor practice.

    Source
  • Users appreciate the Spark Live for its versatility in handling multiple instruments and vocals simultaneously, making it suitable for small group practices.

    Source
  • Some users report frustration with the app dependency, finding it cumbersome for quick adjustments during practice sessions.

    Source

Comparisons

  • Owners who compared the Spark 40 to the Yamaha THR and Boss Katana often found the Spark's initial sound more appealing without extensive setup.

    Source
  • Compared to Katana 50 MK2, the Spark Live provides fuller and more rounded amp models, requiring less tweaking for in-room sound.

    Source
  • The Spark is often compared to Yamaha THR and Boss Katana for practice use, with the latter noted for better sound fidelity and tones.

    Source

Software and compatibility

  • Concerns exist over long-term app support, but some users reserve old devices specifically for running the Spark app.

    Source

Mods and upgrades

  • Owners often remedy the bass-heavy sound by inserting a sock in the bass tube or adjusting EQ settings in the app.

    Source

Critic Reviews

Positive Grid Spark review | Guitar World

guitarworld.com

The Positive Grid Spark is a game-changer in the practice amp world, boasting advanced features like Smart Jam and Auto Chords that make it a versatile tool for players. Its modeling technology delivers convincing tones and ample onboard effects, all in a compact design. While the extensive tonal options can be overwhelming, the amp's intuitive layout makes it easy to dive in. At a competitive price point, this amp stands out as an excellent value for both beginners and seasoned players. If you're looking for a practice amp that delivers on sound and innovation, the Spark is hard to beat.

positive

Positive Grid Spark Review | GuitarPlayer

guitarplayer.com

The Positive Grid Spark Practice Amp is a game-changing home amplifier that excels in versatility, boasting impressive amp and effects modeling through its app. With over 10,000 tones at your fingertips and features like Auto Chord Recognition and Smart Jam, it caters to both practice and recording needs. However, it’s not without flaws; users may experience volume jumps between presets and occasional inaccuracies in chord detection. Despite these quirks, the Spark delivers exceptional sound quality and functionality, earning it a well-deserved Editors’ Pick Award.

positive

5.0 out of 5

Based on 0 Reviews and 1 Rating

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Artist usage

Add artist
See how Steve Vai uses Positive Grid Spark Practice Amp

Steve Vai

Guitarist

Whitesnake

...
Verified via Facebook

You can see the Spark Amp in the background on the left. Steve Vai is adjusting tone at 3:20 and you can clearly see the amp

See how Rudy Sarzo uses Positive Grid Spark Practice Amp

Rudy Sarzo

Bassist

Ozzy Osbourne

...
Verified via YouTube

Rudy Sarzo gives a detailed low down on the Spark Amp and App in this video

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

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