Looking for powerful tone in a compact package This used Positive Grid Spark 40 is in good condition and delivers outstanding versatility for guitarists of any level. With 40 watts of solid-state power and dual 4" custom-designed speakers, it produces rich, dynamic sound ideal for practice or casual performance. The Spark 40 features smart app integration via Bluetooth, giving access to over 10,000 tones, virtual backing tracks, and real-time guitar effects. It includes built-in amp modeling, 40+ effects, a tuner, metronome, and USB audio out for recording. Whether you're jamming at home or crafting fresh riffs, this amp's intelligent features and portable design make it a go-to tool. Unit shows minor cosmetic wear but functions perfectly. Includes power supply, ready to plug in and play.