River Valley High School 801 El Margarita Rd. Yuba City, CA 95993 June 7, 2026 1X SPL Event IdBL, Bass Boxing, Demo Boxing $25 per format Facebook Event Page: https://www.facebook.com/events/1784894112889674/ IASCA is excited to bring you another great event at the 4th Annual Motors and Music Car Show in Yuba City, CA on Sunday, June 7th! 🔊🔥 Join us for an action-packed day of SPL competition, demos, trophies, and some of the loudest builds in California! This is an official IASCA 1X Points Event and scores will count toward the 2026 season standings. All proceeds are being donated to the High School sports teams! Huge thank you to River Valley High School and Audio Enhancers for hosting IASCA and supporting the California car audio community! 📍 Location: 801 El Margarita Road, Yuba City, CA 🕘 Event Time: 10:00AM – 2:00PM 🎤 Event Judge: Ray Pimley 💲 Entry Fee: $25 per format (IASCA competitors skip the gate fee!) For more Car Show related info, the official event page can be found here https://www.facebook.com/events/1989586345102254/ Come compete, meet other enthusiasts, and see why IASCA is “The Standard By Which Great Mobile Electronics Performance Is Measured.”