The Positive Grid Spark 40 is a Positive Grid amplifier, currently around $221. Close alternatives include the Mesa Boogie Split Back 2x12 and the Blackstar Marco Mendoza. It pairs well with the Dallas Rangemaster Treble Booster and the ProCo RAT 2.
Positive Grid Spark 40
Positive Grid · amplifier
The Positive Grid Spark 40 is a 40-watt, 2x4-inch modeling guitar combo from Positive Grid's Spark line, offering more power and stereo speaker output than the compact Spark 2 while retaining the series' signature AI-powered tone shaping and companion app integration for smart backing tracks and expanded tone libraries. It's built for players wanting genuine practice-to-small-gig volume alongside the Spark ecosystem's interactive practice features.
What stands out
“Valued as a step up in power and speaker output from the smaller Spark 2, giving players more usable volume for small gigs or louder practice sessions while retaining the full Spark app ecosystem”
— from the community notes
“The Positive Grid Spark 40 is a 40-watt, 2x4-inch modeling guitar combo from Positive Grid's Spark line, offering more power and stereo speaker output than the compact Spark 2 while retaining the series' signature AI-powered tone shaping an…”
— from the listing
“Primary use case is home practice through small-venue playing where 40 watts and stereo 2x4-inch speakers provide fuller, more room-filling sound than the compact Spark 2”
— from the community notes
“A strong choice for players wanting the Spark ecosystem's interactive practice features with genuinely more usable volume than the entry-level Spark 2”
— from the reviews
“40 watts through stereo 2x4-inch speakers gives meaningfully fuller, louder sound than the compact Spark 2, suited to small gigs and louder practice sessions”
— from the reviews
- practice
- stereo
- session
- more room filling sound
- louder sound
- full
- bedroom
- compact
Good for
- Practice
- Silent Recording
- Live
- Studio
Price updated Oct 25, 2026
Pedals that stack with the Positive Grid Spark 40
Dallas Rangemaster Treble Booster
Dallas
16% matchInto the Spark 40's room-filling, session-ready practice platform, the Rangemaster's germanium treble boost has a versatile amp voice to brighten.
Goes in front of the amp
ProCo RAT 2
Proco
16% matchThe RAT's dark, cutting distortion pushes past what the Spark 40's own room-filling practice models get you on their own.
Goes in front of the amp
MXR Distortion+
MXR
15% matchThe Distortion+'s hard-rock clipping gives the Spark 40's clean digital platform an old-school gritty layer its own modeling doesn't replicate.
Goes in front of the amp
MXR Phase 90
MXR
12% matchInto the Spark 40's roomier modeled clean tone, the Phase 90's classic sweep stays clean and defined.
Goes in front of the amp
MXR Dyna Comp
MXR
11% matchWhat MXR Dyna Comp brings here leans toward bright — that's worth building a pairing around
Goes in front of the amp
Electro-Harmonix XO Deluxe Memory Man
Electro-Harmonix
9% matchKeep the Memory Man's lush analog echo in the Spark 40's loop, clear of the amp's own room-filling, session-ready practice platform. — goes in the amp's FX loop (or last, into a clean amp)
Sits in the amp's effects loop
Roland SDE-3000D
Roland
8% matchKeep Roland SDE-3000D in Positive Grid Spark 40's effects loop, clear of Positive Grid Spark 40's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Sits in the amp's effects loop
Cheaper alternatives
Boutique & premium upgrades
Fender Quad Reverb
Fender
58% similarityShared character: full
Peavey JSX Mini Colossal Guitar Amp
Peavey
55% similarityShared character: power, room, practice
AER Compact XL
amplifier
45% similarityShared character: room, practice, full
Line 6 Catalyst 60
Line 6
44% similarityShared character: middle, practice
Blackstar Silverline 50
Blackstar
86% similaritysimilar tone character
Similar character
See all alternatives to the Positive Grid Spark 40 (cheaper + boutique) →
Questions people ask
What are good alternatives to the Positive Grid Spark 40?+
The closest matches in character are the Mesa Boogie Split Back 2x12, the Blackstar Marco Mendoza, the Blackstar Idcore 40 V3. Budget picks: Blackstar Idcore 40 V3. Boutique upgrades: Fender Quad Reverb, Peavey JSX Mini Colossal Guitar Amp, AER Compact XL.
What pairs well with the Positive Grid Spark 40?+
Strong matches from rig and tone-complementarity evidence: Dallas Rangemaster Treble Booster, ProCo RAT 2, MXR Distortion+ — Into the Spark 40's room-filling, session-ready practice platform, the Rangemaster's germanium treble boost has a versatile amp voice to brighten..
How much does the Positive Grid Spark 40 cost?+
Around $221 (live listing price, updated Oct 25, 2026).