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Positive Grid Spark Combo Modelling Amp
£219.00
Stock Arriving Soon
Stock expected 9th June 2026Includes 3-Year Warranty & 30-Day Exchange
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We'll share some similar product recommendations, and if the item does not come back in stock we will let you know.Frequently Bought Together
Manufacturer's ID: S040CB9-UKBS
The Positive Grid SPARK is the first of its kind. It is a comprehensive amp and app packed with intelligent features, realistic tones and recording capabilities. Learn your favourite songs, use it as a creative jam tool, or explore the vast possibilities available via the smart app.
Award Winning Bias Engine
The Spark features a large selection of realistic amps and effects which create some of the most impressive modeling tones available today. This is all powered by the same engine used on the pro level Positive Grid equipment.
Find Your Perfect Tone
With over 10,000 guitar and bass tones available through the online community, there is something available to suit every style of music. From Classic Rock to Upbeat Funk, you're covered.
Multifunctional Applications
The Spark is fully equipped with amp models designed for electric, acoustic and bass. A perfect solution for multi-instrumentalists and those looking to expand their musical horizons.
A Ready To Go Backing Band
The Smart Jam feature assesses your chords, tempo and feel to create a drum & bass backing track to accompany your playing. A fast and easy way to hear how your ideas would work in a band setting whenever inspiration strikes.
Learning Just Got Easier
Select a song from the millions available across a number of online platforms/libraries and Spark's app will show you the chords to songs, letting you play along in real-time. You can also loop individual sections or adjust the speed to learn at a tempo that is comfortable for you.
Hands-Free Control
The IOS/Android app can be controlled via voice command, freeing up your hands to keep playing and making your jam session a whole lot easier.
Rich High Fidelity Sound
The two 4" custom-designed speakers work in unison with a tuned bass-reflex port to produce a hi-fi grade stereo sound. Any style of music will "shine" when streamed via Bluetooth.
Convenient Recording Interface
Simply plug the Spark into your computer via USB to access its recording capabilities.
Specification
| Frequency Range | 20-20,000 Hz |
| Stereo/Mono | Stereo |
| Maximum Sound Pressure Level | 116dB SPL @ 1m |
| Cabinet Type | Bass-reflex |
| Power Amplifier | 40 Watt Class D |
| Speakers | 2 x 4" Custom Designed |
| Total Impedance | 4 Ohms |
| Controls | Amp Type, Gain, Bass, Mid, Treble, Master, Mod, Delay, Reverb |
| Output Volume, Music Volume, Four Preset Buttons, Tap/Tuner | |
| Onboard Effects | 30 Amps |
| 40 Effects (Noise Gate, Compressor, Distortion, Modulation, Delay, Reverb) | |
| Connections | 1/4" Input |
| 1/8" Aux Input | |
| 1/8" Headphone | |
| Bluetooth Audio | |
| USB Interface for Recording 1 In x 2 Out | |
| Dimensions | 350 x 180 x 190 mm |
| Weight | 5.2kg/11.46lb |
| Software | Mobile App for iOS and Android |
| Box Contents | Spark Amplifier |
| Power Adaptor | |
| USB Cable | |
| Quick Start Guide |
Customer reviews
Overall Rating 4.9/5 (57 reviews)
GuitarGuitar Birmingham we’re on the ball, as usual, and my amp arrived unscathed and on time! 10/10 ??(ex teacher)
Frank J. - 27/5/2026
Amazing amp with amazing app features for beginners and experienced players
Thomas P. - 27/11/2025
Sound like any of your favourite bands with the AI settings . Amazing
John P. - 3/10/2025
George Y. - 1/1/2025
Got the Spark 40 to go with the beginnging of my guitar learning (at the age of 59). I chose this over a conventional practice amp because I wanted something that can grow with me and give me access to a world of tones and set ups that can do all types of genres. It's great fun to much around with and with the app you have access to hundreds of different set ups to mimic your favourite artists and bands. The jam facility is brilliant for practicing with and really keeps you moving and it is great as your ability progresses. All in all this is a great package for a reasonable cost. It may be twice the cost of a basic practice amp but the quality and range of functionality makes it fantasitc value for money.
Michael C. - 16/12/2024
Great piece of kit!
brian w. - 9/11/2024
Excellent service as usual
Leslie S. - 29/8/2024
For the home player, you really wont need anything else. Excellent sound quailiy and the autochord feature is a game changer.... Built quality excellent
Chris M. - 28/7/2024
James E. - 28/7/2024
Stephen V. - 6/5/2024
It is just a fantastic practice amp and a great toy with lots of functions to keep me entertained. Sounds great once you get it dialled in the way you like it. Smart Jam function is very good and helps me with keeping time. I would recommend this amp without question. Although I do not need it I am considering the Spark cab.
Stephen H. - 1/12/2023
Absolutely brilliant for home use. I could play straight away, and within a couple of minutes I could get the sounds I wanted. A bit more tweaking and exploring is needed to get the most out of its features, but if I can do it anyone can. Only briefly tried out recording, but I’m really only interested in practicing. Pros: great range of sounds, through choice of amps and pedals; the jam feature is great, along with backing tracks from YouTube; it sounds great at low volumes, but can go LOUD!! Cons: it is too ‘bassy’ to use as a Bluetooth speaker for music, however I’ve been able to save settings that I’m happy with for the guitar; a looper would have been perfect considering the main intended use of the amp; I like the idea of the additional foot pedal controller, but I’m not paying c50% of the cost of the amp for it. Overall, if you want something small for home practice that sounds great and is good fun, just get it!
James W. - 30/5/2023
The Spark Positive Grid is a great practice amp which is packed full of features. Currently the best practice amp on the market.
ALEX M. - 9/2/2023
Had been thinking of changing electric guitar as not happy with it. My teacher suggested a new amp. From a bit of research this one sounded good - and it amazing! Transformed the sound of my guitar and I just love playing it now - have only scratched the surface of its capabilities. Great value for money too. And it works with my acoustic!
Brian C. - 19/1/2023
Bought spark40 amp and crybaby, amazing set of tones on amp alone, but the crybaby definitely work’s excellently with amp. Also the tones on cloud that you download on app are absolutely brilliant.
Gregory . - 18/1/2023
Great product easy o set up with the app
THOMAS G. - 14/12/2022
Awesome product,delivered with efficient responces
John H. - 13/10/2022
Bought on the basis of all the positive hard-copy and online reviews. I can't fault the seller's service and so far I'm very pleased with the amp itself. It would have been nice to use the Spark app on my PC but it seems that it only works properly on Android and iPhone devices. Perhaps Positive Grid will have something for Windows in the future. Anyway, try and buy. :^)
Stephen F. - 8/10/2022
Helen D. - 25/9/2022
Philip K. - 21/9/2022
Mr M. - 15/9/2022
Not got around to all the features yet but so far so good, it's portable and sound from the amp is very good.
Brian M. - 19/8/2022
Mark F. - 10/8/2022
Fantastic well thought out piece of kit
Peter E. - 4/8/2022
Anjani N. - 31/7/2022
This practice amp is a game changer. What a fantastic learning aid. Love it
Michael H. - 29/6/2022
Dennis B. - 28/6/2022
Mostly very good. Sound is bass heavy regardless of sound source. Sometimes clarity is vague but for what it is I’ve no complaints. It isn’t a valve amp. Could do with a software update to lessen the bass throughout .
Leslie L. - 23/6/2022
Cracking practise amp. Plenty of setting to get the sound you want. Maybe a bigger toggle switch would suit us banana finger players better.
Edmund T. - 17/6/2022
I've had few practice Amps over the years including the boss katana mk2 which is good its just a bit more of mission to access guitar patches and all effects pedals through a connected laptop or PC where as the spark is lot more convenient with a app on phone and alot more portable and the big plus being Bluetooth I can only say I think positive grid have obsolutly nailed it thumbs up ?? ??
George M. - 17/6/2022
Everything went so smoothly
Peter M. - 6/6/2022
Katharine W. - 6/6/2022
A useful piece of kit. Versatile and portable.
Rob S. - 4/4/2022
John M. - 3/3/2022
Great little practice amp.
John D. - 3/3/2022
Fantasic little amp for home use and a huge range of great sounds available that you can quikly select and edit using the free app, Love it.
Ian P. - 28/2/2022
Excellent product. Great sound and once linked to the app it opens a whole range of tonal options. Easy to operate and have already updated sound cloud twice.
Alan F. - 25/2/2022
Graham R. - 16/2/2022
ST-Elmo B. - 14/2/2022
It is exactly what I needed to get me playing guitar again. The wealth of tones you can achieve is incredible and all these tones along with the app features (e.g. backing tracks) can inspire you to play a lot. A perfect practice amp. People have been complaining it's too bass-heavy. Maybe...? I don't know. If you don't compare it side by side with another one you can't tell the difference. If you are an audiophile and are looking for perfection, you wouldn't get a budget all-in-one amp anyway. If you just want to play a ton of things and get 90% of the way there in terms of tone, get this one. I highly highly highly recommend it.
Faidon L. - 13/2/2022
This amp is so loud for something so small and the features are just excellent. Syncs easily to my iPhone via the app & is easy but to use. The build quality & and styling are excellent & it is feature in the front room just like my B&W Zeppelin, that is how good this amp looks.
Philip H. - 13/2/2022
Brilliant box of tricks. Helping me to improve my mediocre playing. So many features to try out and a lovely sound. I love it.
Derek B. - 8/2/2022
See above for my views. Oh and it was delivered promptly.
Rob S. - 6/2/2022
Great practice amp easy to use and set up
David G. - 6/2/2022
Very versatile product and great sound
JOHN F. - 18/11/2021
Raynor N. - 13/11/2021
So much to try out...but up to now all is great. Only one criticism, its got to much bass, so I'm using it with the bass on minimum
Mick G. - 3/11/2021
David F. - 29/10/2021
dale n. - 26/10/2021
Amazing amp for the price. Got so many features to it - great for whatever level of guitarist you are.
Andrew S. - 25/10/2021
Great practice amp with good features
Wayne C. - 13/10/2021
For the money It's the best practice amp going. The tones are great and versatile and being able to play along with artists is great. The smart jam is a good way to encourage practice
Paul F. - 7/10/2021
Still getting to grips with the amp.
Neil L. - 5/10/2021
Perfect punchy practice amp.
Terry H. - 5/10/2021
This is a really great amplifier at amazing price.
Terence C. - 3/10/2021
Graham L. - 27/9/2021
Excellent piece of equipment
Christopher M. - 16/9/2021