Hertz Stage 6 Plug & Play Amp And Speaker Package For 2025 Harley Davidson® CVO Road Glide Motorcycles

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:

• Optimal Speaker Positioning: For 6x9” speakers, we use custom cut-in kits that elevate the speakers higher in the lid. This not only saves space in your bag but also angles the speakers toward you, improving sound clarity. Most replacement lids don’t do this.
• Proper Powering: We make sure the rear speakers are properly powered so they’re loud enough to be heard even from behind.
• Balanced Sound: While front speakers will always be louder due to their direct orientation, rear speakers add a fuller, surround sound experience with enhanced mid-bass, creating a concert-like atmosphere.

Our Comprehensive Audio Upgrade Package Includes:

• Pre-Wired Amplifier: Gains and filters are adjusted perfectly for your factory Skyline OS Infotainment radio.
• Volunteer Audio HD-A2B8 Interface: Seamlessly integrates with your Harley Davidson, expertly tuned for Hertz systems.
• 1 Pair of Hertz SX165NEO 6.5” Upper Fairing Speakers: High-quality replacements for your factory speakers.
• 1 pair of Hertz SX690H NEO 6x9” Saddlebag Lid Speakers: Designed for clear sound and durability.
• 1 Pair of Hertz SV165NEO 6.5" Tour Pak Speakers: Designed for clear sound and durability.
• Hertz Power/Ground Harness: Ensures reliable power and grounding.
• Lengthened Rear Backbone Harness and Modified T-Harness: Designed for an optimal fit and function.

Why Choose Volunteer Audio?

• Pre-Configured Kit: We handle all the prep work, including setting 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. All you need to do is mount the amplifier, connect the wiring to under the seat and battery, and install the speakers.
• Lifetime Tech Support: We offer lifetime support for any items purchased from us, ensuring you have assistance whenever needed.

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HD-A2B8 Amplifier Replacement Interface

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Hertz SP4.900 Amplifier

Our friends at Hertz have released a game changer for motorcycle audio! The Hertz SP4.900 amplifier offers a small footprint but huge output. It’s the most powerful amp available in its size, delivering 160W RMS @ 4Ω and 250W RMS @ 2Ω. With a remarkably low distortion rate of 0.02% THD, it’s the perfect choice for your motorcycle audio system. Technical Specs:

Output Nominal Power (RMS) @ 14.4 VDC, THD 1%:

4 Ch:

160 W x 4 (4Ω)

250 W x 4 (2Ω)

3 Ch:

160 W x 2 (4Ω) + 500 W x 1 (4Ω)

250 W x 2 (2Ω) + 500 W x 1 (4Ω)

2 Ch:

500 W x 2 (4Ω)

Total Power RMS: 1000 W

Dyno Specs:

Box rating: 160 watts at 4Ω, Dyno reads 173 watts at 4Ω

Box rating: 250 watts at 2Ω, Dyno reads 288 watts at 2Ω

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Ready to Elevate Your Ride?

At Volunteer Audio, we’re committed to providing you with an amazing sound system for your Harley Davidson. Our Stage 4 package is designed for top-notch performance and durability, transforming your motorcycle into a high-quality audio experience. Ready for a sound transformation? Let us help you get there!