Since the release of the JUPITER-4 in 1978, the name JUPITER has marked the pinnacle of Roland sound and playability. Roland synthesizers with the JUPITER name carry our most advanced sound technologies, are supremely playable, and are built from premium materials. JUPITER-X combines classic Roland design and premium build quality with a powerful new synth engine. It faithfully recreates sought-after instruments from our long history of genre-defining sounds. And with multiple layer