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Positive Grid Spark 40 - $150 (santa cruz)
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The first version of the Positive Grid Spark 40, a popular smart guitar amp, launched around late 2020/early 2021, offering 40 watts of sound, app integration for tones, Smart Jam (AI backing tracks), Auto Chords (chords from songs), and acting as a Bluetooth speaker/USB interface. It's known for its impressive features for practice and creativity, with successors like the Spark Mini and Spark GO later expanding the line, but the original 40W model set the standard for smart practice amps.