{"product_id":"hertz-a2b-stage-6-ultimate-plug-play-amp-and-speaker-package-with-subwoofer-for-2026-harley-davidson®-street-glide-3-limited-motorcycles","title":"Hertz A2B Stage 6 Ultimate Plug \u0026 Play Amp And Speaker Package with Subwoofer For 2026 Harley Davidson® Street Glide 3 Limited Motorcycles","description":"\u003cp\u003eTired of struggling to hear your factory Harley speakers at highway speeds? Or constantly replacing blown speakers? You’re not alone!\u003c\/p\u003e\n\u003cp\u003eAt Volunteer Audio, we understand these common frustrations, and we’ve created a solution that will revolutionize your riding experience. Our Stage 4 amplifier and speaker system ensures your music sounds incredible, even at 100 mph.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Choose the Volunteer Audio Stage 6 System?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Sound Clarity\u003c\/strong\u003e: Our package delivers powerful, clear audio, allowing you to enjoy your favorite tunes without distortion, no matter how fast you’re going.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Upgrade\u003c\/strong\u003e: Keep your factory radio while enhancing your sound system. Our prewired amplifier is set up for optimal performance with your factory Skyline OS Infotainment radio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability\u003c\/strong\u003e: The IP64 rated compact amplifier is moisture-resistant, and the Hertz speakers feature weather-resistant cones, making them perfect for any riding conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat’s Included in the Stage 6 Package?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrewired Velocity RZP2000.6 6-Channel Amplifier:\u003c\/strong\u003e A powerful, compact, all-weather amplifier that arrives prewired with its gains and filters professionally set for your factory Skyline OS infotainment system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Pair of Hertz SX165NEO 6.5-Inch Upper-Fairing Speakers:\u003c\/strong\u003e High-output, weather-resistant speakers that replace the factory upper-fairing speakers with greater volume, clarity and detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Pair of Hertz SV165NEO 6.5-Inch Tour-Pak Speakers:\u003c\/strong\u003e High-performance neodymium speakers engineered to deliver powerful, clear sound from the Tour-Pak speaker locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Pair of Hertz SV165NEO 6.5\" Lower Fairing Speakers: \u003c\/strong\u003e\u003cspan\u003eAdd these high-quality speakers to your lower fairing pods for enhanced bass and sound depth, providing a fuller and richer listening experience.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cstrong\u003eLower Fairing Speaker Pod Kit:\u003c\/strong\u003e Provides a secure fit for the Hertz SV165NEO speakers in your factory lower fairings, with the hardware and wiring needed for installation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Hertz HMS 12 B4-LD-C 12-Inch Subwoofer:\u003c\/strong\u003e A marine-grade, long-excursion subwoofer that adds the deep, powerful bass missing from the factory audio system.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolunteer Audio HD-A2B8 Interface:\u003c\/strong\u003e Integrates the upgraded audio system with your Harley-Davidson’s factory Skyline OS radio while providing the clean, properly tuned signal needed for the Hertz systems.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eWhy Volunteer Audio?\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Configured Convenience\u003c\/strong\u003e: We do all the hard work for you. Your kit arrives with gains and filters already set, making installation straightforward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep-by-Step Support\u003c\/strong\u003e: Our detailed videos guide you through the installation process, and our lifetime tech support is always here to help.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Tech Support:\u003c\/strong\u003e We offer lifetime support for any items purchased from us, ensuring you have assistance whenever needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv class=\"twentytwenty-wrapper bafg-twentytwenty-wrapper twentytwenty-horizontal\"\u003e\n\u003cdiv class=\"bafg-twentytwenty-container slider-101661 twentytwenty-container\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bafg-slider-info-wraper\"\u003e\n\u003cdiv class=\"slider-info-101661 bafg-slider-info\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eHD-A2B8 Amplifier Replacement Interface\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e• Designed for Harley-Davidson models equipped with the Skyline OS Infotainment Unit.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e⸻\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003ePurpose:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e• Allows for the removal of the stock amplifier.\u003c\/div\u003e\n\u003cdiv\u003e• Facilitates the installation of higher power aftermarket amplifiers.\u003c\/div\u003e\n\u003cdiv\u003e• Maintains compatibility with factory-installed Rockford Fosgate subwoofers and rear-mounted secondary amplifiers.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e⸻\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e• Designed and manufactured by SeirenHD exclusively for Volunteer Audio.\u003c\/div\u003e\n\u003cdiv\u003e• Engineered and manufactured in the USA.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e⸻\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003ePre-Tuned for Plug-and-Play Performance\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe HD-A2B8 interface from Volunteer Audio and SeirenHD is ready to install right out of the box—no tuning required for standard systems.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eAlready optimized for immediate use:\u003c\/div\u003e\n\u003cdiv\u003e•  Flat EQ Curve – Delivers a clean, uncolored audio signal\u003c\/div\u003e\n\u003cdiv\u003e• Pre-Set Output Levels – Optimized to run clean at full volume with zero clipping\u003c\/div\u003e\n\u003cdiv\u003e•  Speed-Controlled Volume – Fully retained and pre-configured to match factory behavior\u003c\/div\u003e\n\u003cdiv\u003e• Fader Support – Works immediately without any setup\u003c\/div\u003e\n\u003cdiv\u003e• All Factory Features Intact – Including navigation prompts, radio EQ selections, and more\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eTuning is optional, only necessary when:\u003c\/div\u003e\n\u003cdiv\u003e• Activating crossovers\u003c\/div\u003e\n\u003cdiv\u003e• Using the 31-band or 10-band EQ to customize for specific speaker setups\u003c\/div\u003e\n\u003cdiv\u003e• Adjusting time alignment or per-channel output levels\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e⸻\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003ePlug-and-Play Harnessing\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe HD-A2B8 includes a harness that connects directly to all factory speaker wiring with zero modification to your motorcycle.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eFor expanded setups, additional plug-and-play harnessing is available below:\u003c\/div\u003e\n\u003cdiv\u003e• Underseat Harness – Pins into the factory plug on base model bikes\u003c\/div\u003e\n\u003cdiv\u003e• Lid Disconnect Harness – Clean, quick-disconnect solution for 6x9 lid speaker installations\u003c\/div\u003e\n\u003cdiv\u003e• Tour Pack Harness – Adds plug-and-play rear audio for tour pack installations\u003c\/div\u003e\n\u003cdiv\u003e• Lower Fairing Harness – Simple solution for adding speaker pods to your lower fairings\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eAll harnessing options are pre-configured and labeled for quick installation and available for purchase below.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e⸻\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eIntegration Features:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e• Utilizes the OE A2B chip for seamless factory integration\u003c\/div\u003e\n\u003cdiv\u003e• Supports all factory infotainment updates\u003c\/div\u003e\n\u003cdiv\u003e• Retains full factory functionality, including:\u003c\/div\u003e\n\u003cdiv\u003e • Fader\u003c\/div\u003e\n\u003cdiv\u003e • EQ selections with DSP profile adjustments\u003c\/div\u003e\n\u003cdiv\u003e • Speed-controlled volume\u003c\/div\u003e\n\u003cdiv\u003e • Navigation prompts\u003c\/div\u003e\n\u003cdiv\u003e • Digital A2B subwoofer output for HD Audio by Rockford systems\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e⸻\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eDSP Specifications:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e• 10 Output Channels with Full DSP Control:\u003c\/div\u003e\n\u003cdiv\u003e • 8 Analog RCA Outputs\u003c\/div\u003e\n\u003cdiv\u003e • 2 Digital A2B Outputs (for Rockford subwoofers)\u003c\/div\u003e\n\u003cdiv\u003e• Equalization:\u003c\/div\u003e\n\u003cdiv\u003e • Per-channel 31-band graphic EQ or 10-band parametric EQ\u003c\/div\u003e\n\u003cdiv\u003e • Global 7-band parametric EQ mirrors infotainment custom EQ settings\u003c\/div\u003e\n\u003cdiv\u003e• Time Alignment:\u003c\/div\u003e\n\u003cdiv\u003e • Independent delay settings for every channel\u003c\/div\u003e\n\u003cdiv\u003e• Crossover Control:\u003c\/div\u003e\n\u003cdiv\u003e • Independent high-pass and low-pass filters per output pair\u003c\/div\u003e\n\u003cdiv\u003e• Level Adjustment:\u003c\/div\u003e\n\u003cdiv\u003e • Individual channel-level control for precise tuning\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e⸻\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e• RCA Outputs:\u003c\/div\u003e\n\u003cdiv\u003e • 8 Channels, 4v RMS\u003c\/div\u003e\n\u003cdiv\u003e • Front, Rear, Subwoofer, and Auxiliary output configuration\u003c\/div\u003e\n\u003cdiv\u003e• Frequency Response: 20 Hz – 24 kHz\u003c\/div\u003e\n\u003cdiv\u003e• Signal-to-Noise Ratio: 112 dB\u003c\/div\u003e\n\u003cdiv\u003e• DSP Resolution: 32-bit\u003c\/div\u003e\n\u003cdiv\u003e• Operating Voltage: 6–28 volts\u003c\/div\u003e\n\u003cdiv\u003e• Current Draw:\u003c\/div\u003e\n\u003cdiv\u003e • Idle: 14 µA\u003c\/div\u003e\n\u003cdiv\u003e • Full Power: 300 mA\u003c\/div\u003e\n\u003cdiv\u003e• Warranty: 1 Year\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eVelocity RZP2000.6 6-Channel Amplifier\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eVelocity RZP2000.6\u003c\/strong\u003e delivers massive system power from one compact, motorcycle-ready amplifier. Producing up to \u003cstrong\u003e350 watts RMS per channel at 2 ohms\u003c\/strong\u003e, it can power \u003cstrong\u003eup to eight 4-ohm mids and highs through the first four channels\u003c\/strong\u003e, while channels 5 and 6 remain available for dedicated subwoofers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e200 watts RMS × 6 at 4 ohms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e350 watts RMS × 6 at 2 ohms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e600 watts RMS × 3 bridged at 4 ohms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDedicated controls for front, rear and subwoofer channels\u003c\/li\u003e\n\u003cli\u003eAdjustable high-pass and low-pass crossovers\u003c\/li\u003e\n\u003cli\u003eFanless aluminum heat-sink design\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIP65-rated, sealed all-weather construction\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSealed electrical connections and protected adjustments\u003c\/li\u003e\n\u003cli\u003eThermal, overload and short-circuit protection\u003c\/li\u003e\n\u003cli\u003eBacked by a \u003cstrong\u003e2-year Velocity warranty\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAs part of this Volunteer Audio Plug-and-Play Package, the amplifier includes the properly sized \u003cstrong\u003eOFC power and ground harness\u003c\/strong\u003e, bike-specific integration components and \u003cstrong\u003esystem-specific pre-tuning\u003c\/strong\u003e. Gains, crossovers and channel configurations are set for the included speakers and subwoofers—eliminating guesswork during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Due to the amplifier’s high current demand, Volunteer Audio strongly recommends a \u003cstrong\u003eLithium battery upgrade \u003c\/strong\u003efor Harley-Davidson applications.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eReady to Elevate Your Ride?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt Volunteer Audio, we’re committed to providing you with an amazing sound system for your Harley Davidson. Our Stage 6 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!\u003c\/span\u003e\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":50522012614873,"sku":"HDPKG2188","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/7389\/9481\/files\/hertz-stage-6-sub-sg3.jpg?v=1790266535","url":"https:\/\/volunteeraudio.com\/products\/hertz-a2b-stage-6-ultimate-plug-play-amp-and-speaker-package-with-subwoofer-for-2026-harley-davidson%c2%ae-street-glide-3-limited-motorcycles","provider":"Volunteer Audio","version":"1.0","type":"link"}