Diamond Audio 14 - 23 Harley Davidson Road Glide 4-Speaker System - DA1423RGSP4
Introducing the Diamond Audio DA1423RGSP4 , a precision-engineered, four-speaker high-output sound pack purpose-built for 2014–2023 Harley-Davidson Road Glide models. This system is the definitive choice for hardcore riders and audio purists who demand maximum output and surgical clarity. Designed for a seamless fit within the Sharknose fairing and saddlebags, the SP4 transforms your motorcycle into a high-performance acoustic powerhouse.
The acoustic foundation features our pro-audio MP Series speakers in a full-stage configuration. These high-performance drivers are equipped with powerful integrated compression tweeters engineered for extreme projection and crisp detail—perfect for cutting through intense wind, pipe, and road noise during high-speed riding. Driving this extreme setup is the MICRO4V2 Series 4-Channel Class D amplifier , providing unmatched efficiency and the massive dynamic headroom required for crystal-clean loudness across all four channels.
The DA1423RGSP4 includes the MSMP692LK Cut-In Lid Kit , integrating the 6x9” MP Series compression speakers into your factory saddlebag lids for an aggressive, high-output rear stage. With the MSPWHR OFC Power Harness , MSRCA2 signal kit , and specialized '14-23 Road Glide integration software , this system ensures the cleanest signal path, flawless factory integration, and the ultimate high-performance audio experience.
Features
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Extreme 4-Speaker Projection: Full-bike upgrade utilizing MP Series compression drivers for maximum SPL and long-range sound throw.
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Pro-Audio Performance: Engineered to maintain absolute clarity and massive volume at 80+ MPH against aggressive environmental noise.
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Optimized for Sharknose Fairings: Specifically tuned for the 2014-2023 Road Glide acoustic environment and electrical architecture.
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Pure Signal Path: 100% Oxygen-Free Copper (OFC) wiring and direct RCA integration eliminate signal degradation and maximize amplifier efficiency.
What our Experts Think
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Purpose-built for 2014–2023 Harley-Davidson Road Glide models for seamless fitment and integration.
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Complete 4-speaker audio system delivers powerful, balanced sound throughout the bike.
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High-output Class D amplifier provides exceptional clarity and volume, even at highway speeds.
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Premium MP Series speakers with compression tweeters cut through wind, engine, and road noise for crystal-clear audio.
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Includes fairing and saddlebag speaker upgrades for a wider, more immersive soundstage.
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100% OFC wiring and direct RCA integration help maximize signal quality and amplifier performance.
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An outstanding choice for riders who want premium touring audio with factory-style installation and uncompromising performance.
Q&A
Q: What motorcycles is the Diamond Audio DA1423RGSP4 compatible with?
A: It is specifically designed for 2014–2023 Harley-Davidson Road Glide (FLTR, FLTRX, FLTRXS) models for a direct-fit installation.
Q: What is included in the DA1423RGSP4 system?
A: The kit includes four high-output speakers, a 4-channel Class D amplifier, saddlebag lid speaker kit, wiring harnesses, fairing grilles, and Road Glide-specific integration software.
Q: Does this system work with the factory radio?
A: Yes. The DA1423RGSP4 is engineered to integrate with the factory audio system using dedicated RCA and wiring harnesses.
Q: Is the audio loud enough for highway riding?
A: Yes. The compression-driver speakers and high-power amplifier are designed to deliver clear, high-volume sound that cuts through wind and road noise at highway speeds.
Q: Why choose the Diamond Audio DA1423RGSP4?
A: It offers a complete plug-and-play 4-speaker upgrade with premium sound quality, high output, and vehicle-specific fitment for 2014–2023 Harley-Davidson Road Glide motorcycles.
Maintenance Tips
- Clean speakers and grilles regularly with a soft, dry microfiber cloth.
- Inspect wiring and connections periodically to ensure a secure fit.
- Avoid direct high-pressure water spray on audio components.
- Check mounting hardware regularly to prevent vibration and rattles.
- Keep volume at clean, distortion-free levels to maximize speaker lifespan.
Damage 
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