This article is what above have to read. I am Yosh, a music store ex-employee (@Yosh_Guitars). This article reviews the Positive Grid Spark GO with pros and cons. In addition, I compare the differences between the three models in the series: the regular-sized Spark 40, Spark MINI, and Spark GO, and explain how to choose the right one. Pros 1. Multifunctional palm-sized amp The best-selling amp, “Positive Grid Spark 40”, which is superior in the sound aspect among multifunctional digital amps, has been compacted to palm size, creating this Spark GO. The size is 125 x 85 x 45 mm. … Continue reading Positive Grid Spark GO Review: Comparison with Spark 40/MINI