Revitalize Your Legend: 1998-2013 Road Glide 4-Speaker High-Output Digital Audio Evolution

Introducing the Diamond Audio DA9813RGSP4R , the ultimate flagship 4-speaker sound pack purpose-built for 1998–2013 Harley-Davidson Road Glide models. This comprehensive "R-Series" system is the definitive solution for elite riders seeking a total source-to-speaker revolution—merging high-definition digital media control with an aggressive, pro-audio acoustic stage that dominates the highway.

The command center is the MSHD9813RG Plug-N-Play Digital Media Receiver , replacing the aging factory head unit to provide a high-voltage digital signal path, modern smartphone connectivity, and a full-color interface. The acoustic foundation features a synchronized MP Series  array: 6.5” coaxial fairing speakers and 6x9” saddlebag drivers, both equipped with powerful integrated compression tweeters . These are engineered for extreme projection and surgical detail—perfect for cutting through intense wind and engine noise at high speeds. Providing the muscle is the MICRO4V2 Amplifier , a high-efficiency 4-channel Class D powerhouse that delivers unmatched clarity and the dynamic headroom needed for crystal-clean loudness across the entire bike.

The DA9813RGSP4R  ensures total system integrity through the MSPWHR OFC Power Harness , specialized '98-'13 Road Glide software , and the MSMP692LK13 Lid Kit  for seamless saddlebag integration. Finished with custom DHDRG13 fairing grilles  featuring the Diamond Logo, this system ensures the cleanest signal path, flawless factory integration, and the ultimate high-performance audio experience for the modern rider on a classic machine.

• Complete Source Overhaul:  Includes the MSHD9813RG head unit for full digital media control and superior signal processing over the obsolete OEM radio.
• Dual-Stage Pro-Audio Output:  MP Series compression drivers in both the fairing and saddlebags provide a synchronized, high-SPL (Sound Pressure Level) experience.
• Extreme Long-Range Projection:  Engineered specifically to "throw" sound effectively over the handlebars and from the rear bags at highway speeds.
• Pure Signal Path:  100% Oxygen-Free Copper (OFC) wiring and direct digital integration eliminate signal degradation and maximize amplifier efficiency.