Velocity | SKU: HDPKG1979

Velocity Premium A2B Stage 2 Plug & Play Amp And Speaker Package For 2024-Up Harley Davidson® Street Glide Base Models & 2025 Street Glide Ultra Motorcycles

Name: Velocity Premium A2B Stage 2 Plug & Play Amp And Speaker Package For 2024-Up Harley Davidson® Street Glide Base Models & 2025 Street Glide Ultra Motorcycles
Brand: Velocity
SKU: HDPKG1979
Availability: InStock

$0⁰⁰ USD

Taxes, discounts and shipping calculated at checkout.

Can you hear your factory Harley speakers at highway speeds?

We didn't think so.

Trying to crank your factory radio all the way up just to hear your music? Chances are you've already noticed the lack of volume, poor clarity, or maybe you've even blown a factory speaker trying.

That's exactly why Volunteer Audio developed the Velocity Razor Performance Package.

Featuring the Velocity Razor Pro amplifier and Velocity Razor Coax Neo speakers, this system is engineered to deliver incredible output, crystal-clear vocals, and powerful midbass that stays clean even at interstate speeds.

Whether you're cruising back roads or riding 80+ MPH on the highway, your music stays loud, detailed, and enjoyable.

What Makes This System Exceptional?

High-Efficiency Class D Amplifier

The Velocity Razor Pro amplifier is purpose-built for motorcycle audio, delivering exceptional output from a compact chassis. Its efficient Class D design provides clean, reliable power while producing less heat and placing less demand on your motorcycle's charging system.

Premium Neodymium Speakers

The Velocity Razor Coax Neo RCN65 speakers feature lightweight neodymium motors and integrated tweeters that produce exceptional vocal clarity, detailed highs, and punchy midbass. Designed specifically for motorcycle environments, they easily overcome wind and road noise while maintaining outstanding sound quality.

Built for Harley-Davidson®

Every component is selected with Harley-Davidson touring motorcycles in mind, creating a system that offers exceptional performance, reliability, and easy installation.

Package Includes:

Pre-Wired Amplifier: Available with either the Velocity Razor Pro RZP1500.4 or Velocity Razor Pro RZP2000.6, professionally configured with gains and filters preset for your factory Skyline OS Infotainment radio.
Volunteer Audio HD-A2B8 Interface: Seamlessly integrates with your Harley-Davidson® and is expertly tuned for the Velocity Razor audio system.
1 Pair of Velocity Razor Coax Neo RCN65 6.5" Speakers: Lightweight neodymium coaxial speakers engineered to deliver exceptional clarity, powerful midbass, and highway-speed performance.

Why Choose Volunteer Audio?

Pre-Configured Kit: We complete all the prep work before your system ships, setting amplifier gains and crossover filters so your kit arrives as close to plug-and-play as possible.

Easy Installation: Includes mounting hardware and step-by-step installation videos. Simply mount the amplifier, connect the wiring, and install the speakers.

Lifetime Tech Support: Every Volunteer Audio package includes lifetime technical support from our experienced motorcycle audio specialists.

HD-A2B8 Amplifier Replacement Interface

Compatibility:

• Designed for Harley-Davidson models equipped with the Skyline OS Infotainment Unit.

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Purpose:

• Allows for the removal of the stock amplifier.

• Facilitates the installation of higher power aftermarket amplifiers.

• Maintains compatibility with factory-installed Rockford Fosgate subwoofers and rear-mounted secondary amplifiers.

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Manufacturer:

• Designed and manufactured by SeirenHD exclusively for Volunteer Audio.

• Engineered and manufactured in the USA.

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Pre-Tuned for Plug-and-Play Performance

The HD-A2B8 interface from Volunteer Audio and SeirenHD is ready to install right out of the box—no tuning required for standard systems.

Already optimized for immediate use:

• Flat EQ Curve – Delivers a clean, uncolored audio signal

• Pre-Set Output Levels – Optimized to run clean at full volume with zero clipping

• Speed-Controlled Volume – Fully retained and pre-configured to match factory behavior

• Fader Support – Works immediately without any setup

• All Factory Features Intact – Including navigation prompts, radio EQ selections, and more

Tuning is optional, only necessary when:

• Activating crossovers

• Using the 31-band or 10-band EQ to customize for specific speaker setups

• Adjusting time alignment or per-channel output levels

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Plug-and-Play Harnessing

The HD-A2B8 includes a harness that connects directly to all factory speaker wiring with zero modification to your motorcycle.

For expanded setups, additional plug-and-play harnessing is available below:

• Underseat Harness – Pins into the factory plug on base model bikes

• Lid Disconnect Harness – Clean, quick-disconnect solution for 6x9 lid speaker installations

• Tour Pack Harness – Adds plug-and-play rear audio for tour pack installations

• Lower Fairing Harness – Simple solution for adding speaker pods to your lower fairings

All harnessing options are pre-configured and labeled for quick installation and available for purchase below.

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Integration Features:

• Utilizes the OE A2B chip for seamless factory integration

• Supports all factory infotainment updates

• Retains full factory functionality, including:

• Fader

• EQ selections with DSP profile adjustments

• Speed-controlled volume

• Navigation prompts

• Digital A2B subwoofer output for HD Audio by Rockford systems

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DSP Specifications:

• 10 Output Channels with Full DSP Control:

• 8 Analog RCA Outputs

• 2 Digital A2B Outputs (for Rockford subwoofers)

• Equalization:

• Per-channel 31-band graphic EQ or 10-band parametric EQ

• Global 7-band parametric EQ mirrors infotainment custom EQ settings

• Time Alignment:

• Independent delay settings for every channel

• Crossover Control:

• Independent high-pass and low-pass filters per output pair

• Level Adjustment:

• Individual channel-level control for precise tuning

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Technical Specifications:

• RCA Outputs:

• 8 Channels, 4v RMS

• Front, Rear, Subwoofer, and Auxiliary output configuration

• Frequency Response: 20 Hz – 24 kHz

• Signal-to-Noise Ratio: 112 dB

• DSP Resolution: 32-bit

• Operating Voltage: 6–28 volts

• Current Draw:

• Idle: 14 µA

• Full Power: 300 mA

• Warranty: 1 Year

Ready to Elevate Your Ride?

At Volunteer Audio, we've combined the latest Velocity Razor technology with our proven plug-and-play integration to create a motorcycle audio package that delivers incredible volume, exceptional clarity, and reliable performance mile after mile.

If you're ready to finally hear your music the way it was meant to be heard, the Velocity Razor Performance Package is ready for your next ride.