Positive Grid Spark Go BK

In the realm of ultra-portable guitar amps, this product stands out as a testament to exceptional design and functionality. Despite its compact size, the sound quality is remarkably good, providing a satisfying experience for practicing sessions. The accompanying app is a highlight, boasting a well-thought-out design that enhances the overall user experience.

One particularly impressive feature is the amp's volume, which proves to be more than adequate for effective practice sessions. The convenience of the app further extends to the ease with which presets can be searched, simplifying the user's journey to find the perfect sound.

However, a minor inconvenience surfaces in the absence of a feature to sort presets based on their like counts after a search. While this may not be a deal-breaker, it is a noteworthy point for those who value quick and efficient preset navigation.

In conclusion, if you seek a micro amp that defies its size with excellent sound quality, convenient app functionality, and ample volume for practice, this product is a standout choice. The only minor drawback lies in the inability to sort presets by popularity, but overall, it remains a top-tier option for musicians on the go.

Good quality material, feels sturdy. Very versatile because of its small size, fits into most of guitar cases. battery powered. Connects to a phone/computer with bluetooth. Lots of tones. Very easy and intuitive to use. Ability to plug in the headphones, and to store presets.
Of course, it will not sound like a big, expensive amp. But for a practice in a small room, outdoors its a great choice. Just what i needed. A small companion. I tend to practice at home at the speaking volume anyway, and for that this amp does exactly that. The amp probably is designed for more distorted sounds, but I play mostly clean guitar and its really good. Just have to spend some time dialing in the tone that you want, and there are endless possibilities regarding that.
I use it at mid-to-low volume, meaning - never put it at 100% volume. And its just for practice ant speaking volume. If you need the sound to fill the room, probably look for another alternative, or get a bigger one. This tiny amp is not meant to be tortured.

It all started as good as the reviews I saw before buying it. Top notch materials, nice touch, very beautiful, even the packaging is a pleasure for the senses. Creative intro text printed inside the box, a little humor, I loved every bit of it. The only downside... The on/off button and the Bluetooth pairing button are the same actual button, to turning it on/of and pairing it, like switching it from Amp to Bluetooth speaker after hanging my guitar on its stand when I stopped playing, is confusing and an absolute pain in the ***, resulting in disconnecting the speaker from the app etc.

But if that was all, I'd still be a happy customer. Sadly, after little under 10 hours of playing, I wanted to switch to Bluetooth after playing, the sound died, my phone music player paused (what I assumed happened becaus of losing connection with the speaker). However, there was no way of bringing the Amp to life. Not by resetting it, not by force shutting it down, not by factory resetting it, not by leaving it charging for hours at a time with the original charging cable.


Long story short: new Spark Go (less then 10 hours of playing) dies out of nowhere, no solution to be found. 130 euro down the drain

To start off this interview - I'm not a gearhead, and I don't even know much about analogue amps to begin with - I can identify what I like and what I don't, and I can set up a nice tone on an amp that sounds right to me. Digital amps were a mystery to me, so when I started running into ads about this little thing I was quite skeptical - small speaker, and configure your sound through a phone app, where your tone is essentially crafted with a neural network? Thought this could be useful as a practice amp at the very least. Boy, was I wrong. The little thing is (can be) loud as hell - you're not gonna be playing any live shows with it, but for such a tiny speaker, it can go pretty loud when you crank it up while practicing. It also doubles as a bluetooth speaker, which is very useful for playing with live audio. The app is versatile and useful as well, outside from having preset tones and the ability to create custom ones, you also get a bunch of handy stuff including a very responsive tuner. The battery life was also shocking - it took me weeks of (not very consistent, on-and-off) playing to fully drain the thing. It charges with a USB - which can also be plugged into your PC, and guess what, it directly transmits the audio so you can use it as an audio input to even record stuff with this. There's also an Aux output, which you can use to connect to headphones, or even a loudspeaker at a band practice.

All in all, for 100€ this is an insanely good little amp. I probably won't be playing live shows with it, but it is gonna be a part of every single guitar-playing session I undertake from now on.

Les + :
- portable
- solide
- connection facile avec l’appli
- application bien pensée
- design passe partout
- son plus que correct
- l’interface son via USB-C est très pratique
- le bouton volume est super

Les - :
- volume limité car la baffle sature très vite, surtout sur les sons punchy
- 4 presets accessible, c’est très limité
- solide mais se raye et s’abîme vite si beaucoup trimballé
- l’équilibre de l’ampli lorsqu’un câble est branché est très limite, ça bascule vite.

Verdict :
Très impressionnant mais loin d’être parfait.
C’est vraiment pour le musicien nomade.
Il pourrait être plus équilibré (son et design) et avoir quelques updates (stocker 8 presets sur deux banques, etc).
Mais pour le prix, et avec la stabilité de l’application, c’est une tuerie.