The Positive Grid Spark Go is a compact 5W guitar amplifier and Bluetooth speaker with dimensions of 12.5 x 8.5 x 4.5 cm and a weight of 346 g. Despite its small size, it delivers full sound reproduction through computational audio technology and a 5.08 cm (2-inch) speaker system. This portable amplifier seamlessly integrates with the Spark software platform, providing access to 33 amplifier models and 43 effects, as well as over 50,000 user-created sound patches via the companion app. Four preset slots are available directly on the device for quick sound selection. The Spark Go features smart practice tools like Auto Chords for real-time chord analysis and Smart Jam AI, which generates backing tracks based on your playing style. It acts as an audio interface for direct recording to a computer and offers Bluetooth connectivity for music streaming. A built-in tuner, adjustable EQ options, line-out, and a headphone jack support a variety of application scenarios. The rechargeable battery allows for up to 10 hours of continuous operation, making it suitable for mobile practice sessions. The device supports electric guitars, electric acoustic guitars, and electric bass guitars, and offers interchangeable front panels for personalization.