Real owners rate these about evenly: 53% of 85 Positive Grid Spark 2 owners recommend it, vs 54% of 52 for the Positive Grid Spark 40.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“The Spark wins all around. Sonically, functionally, the form, the support... the whole ecosystem just works.”— @ArmandoVegaTV on YouTube
“One can not describe the enormous sound of the Spark without being in the room with it, very amazing, I have let a lot players hear mine and they are genuinely impressed once they hear it in person.”— @RandyRocker56 on YouTube
“the Spark 2 which had many issues that were eventually fixed through firmware updates... it clearly wasn't ready for prime time when it first rolled out their doors”— SherbetUnusual199 on Reddit
“What I love most about Spark is when I want to learn a song, I search the cloud for the song.”— @jrigwald on YouTube
“The best practice amp I have ever owned. Full stop.”— @l-Libertine on YouTube
“The first built-in practise pattern I tried has got wrong chord positions in the grid - pretty much useless for a beginner, who *depends* on the practise material to be _correct._”— @Noone-of-your-Business on YouTube