Positive Grid

Positive Grid launched in San Diego in the early 2010s with JamUp, a mobile app for practising guitar, before moving into desktop amp simulation software with the BIAS line in 2014 and its first hardware amps in 2016. The Spark, launched at NAMM 2020 and named the show's Best Guitar Amplifier that year, turned out to be the product that defined the company — a 40-watt practice amp built around a companion app that jams along with the player using its own AI backing-track generation. It's since become Positive Grid's best-selling product by a wide margin, spawning a whole family of Spark amps in different sizes. New Spark variants and app updates are what we cover most. Here's what we've written.