Velocity Stage 4 Ultimate A2B Plug & Play Amp And Speaker Package with Modular Subwoofer Kit For 2023.5-Up Harley Davidson® CVO Road Glide Motorcycles
Velocity Stage 4 Ultimate A2B Plug & Play Amp And Speaker Package with Modular Subwoofer Kit For 2023.5-Up Harley Davidson® CVO Road Glide Motorcycles is backordered and will ship as soon as it is back in stock.
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Can you hear your factory Harley speakers loud and clear at highway speeds?
We didn't think so.
Tired of blowing those factory speakers just trying to hear them?
Of course you are! These are common issues we hear ALL the time at Volunteer Audio. That's why we're here to deliver a sound experience that will truly blow you away.
Can you really hear rear speakers when added to your bike?
Absolutely!
We get this question frequently, and the answer is a resounding YES. Here's how we ensure you get the full benefit from your rear speakers:
Proper Power: The Velocity Razor Pro amplifier provides the clean power needed to drive both the front and rear speakers, ensuring the rear speakers are easily heard even at highway speeds.
Balanced Sound: While your fairing speakers naturally remain the primary sound source, the rear speakers add depth, improved midbass, and a fuller soundstage that creates a true surround sound experience.
Our Comprehensive Velocity Razor Audio Upgrade Package Includes:
- Pre-Wired Amplifier: Available with the Velocity Razor Pro RZP2000.6amplifier. Gains and filters are professionally adjusted for your factory Skyline OS Infotainment radio.
- Volunteer Audio HD-A2B8 Interface: Seamlessly integrates with your Harley-Davidson®, expertly tuned for Velocity Razor systems.
- 1 Pair of Velocity Razor Coax Neo RCN65 6.5" Upper Fairing Speakers: High-output neodymium coaxial speakers designed to deliver crystal-clear vocals, detailed highs, and powerful midbass at highway speeds.
- 1 Pair of Velocity Razor Coax Neo RCN69 6x9" Saddlebag Speakers: Premium high-output neodymium coaxial speakers engineered to provide exceptional midbass, outstanding clarity, and the output needed to keep your music loud and clean on every ride.
- American Hard Bag IP24SWEV Modular Subwoofer Kit: Complete plug-and-play modular bass system featuring the Velocity Performance Edition 10-inch subwoofer, engineered specifically for the American Hard Bag enclosure to deliver tight, musical bass with outstanding impact and low-frequency performance.
- Velocity Razor Power & Ground Harness: Provides clean, reliable power delivery for maximum amplifier performance.
- Lengthened Rear Backbone Harness and Modified T-Harness: Custom-built for a clean, plug-and-play installation with factory-style fit and function.
Why Choose Volunteer Audio?
Pre-Configured Kit: We handle all the prep work, including setting amplifier gains and filters, so you don't have to. The kit arrives as close to finished as possible, making installation straightforward.
Easy Installation: Includes mounting hardware and clear step-by-step videos. Simply mount the amplifier, connect the wiring under the seat and to the battery, install the speakers and subwoofer, and enjoy premium sound.
Lifetime Tech Support: We offer lifetime support on everything purchased from Volunteer Audio, ensuring expert assistance whenever you need it.
American Hard Bag Modular Bass System
The American Hard Bag Modular Bass System is available with your choice of two premium 10-inch subwoofers.
Both have been extensively tested in this enclosure and both deliver exceptional performance. Neither is better—they simply have different personalities.
Velocity Performance Edition
Engineered Specifically for the American Hard Bag Enclosure
The Velocity 10-inch subwoofer wasn't selected from an existing catalog.
It was engineered specifically for the American Hard Bag enclosure, creating a system where the driver, enclosure, and passive radiator were developed together as a complete acoustic package.
Rated at 300 Watts RMS and 600 Watts Maximum Power, the Velocity subwoofer features an injection-molded cone, Santoprene surround, oversized 56-ounce ferrite motor, and a 38 mm TIL voice coil to deliver exceptional punch, musicality, and long-term reliability.
If your playlist is filled with country, rock, blues, classic rock, or live recordings, the Velocity Performance Edition delivers outstanding impact and natural musical accuracy.
Ideal For: Country, Rock, Classic Rock, Southern Rock, Blues, and Live Recordings
Performance Highlights:
- 300 Watts RMS
- 600 Watts Maximum Power
- Frequency Response: 20-400 Hz
- Injection-Molded Cone
- Santoprene Surround
- 38 mm TIL Voice Coil
- 56 oz Ferrite Magnet
Expect:
- Tight, punchy bass
- Incredible kick drum impact
- Excellent bass guitar definition
- Fast transient response
- Natural, musical low frequencies
HD-A2B8 Amplifier Replacement Interface
Ready to Elevate Your Ride?
At Volunteer Audio, we've paired the latest Velocity Razor Pro amplifiers, Velocity Razor Coax Neo speakers, and the American Hard Bag Modular Bass System to create a premium CVO audio upgrade. With crystal-clear vocals, powerful midbass, immersive rear fill, and deep, musical bass, you'll experience incredible volume and exceptional sound quality while maintaining a clean, factory-style installation.
Ready for a sound transformation? Let Volunteer Audio help you hear your Harley the way it was meant to sound.







