Introducing THE SOUND – a brand-new, state-of-the-art performance space that adds an exciting mid-sized performance space for San Diego music lovers to see and hear their favorite artists! Located at the Del Mar Fairgrounds, and operated by Belly Up Entertainment, THE SOUND is a world-class, 1900-capacity concert venue; an exciting mid-sized venue option for San Diego music lovers to see and hear their favorite artists. Introducing THE SOUND–located at the Del Mar Fairgrounds and operated by Belly Up Entertainment. Let's turn up THE SOUND!