Hertz HSP2-24 A2B Harley Stage 2 Stereo System | 2024+ Touring

If the Hertz SV 165 NEO 6.5" SPL Midrange Pair is part of the HSP2-24 A2B kit, then the earlier page was incomplete because it made the system sound like a simpler front-speaker-and-amp upgrade. Adding the SV 165 NEO midrange pair means this kit should be described as a more advanced front-stage Harley upgrade with stronger projection and better overall output.

Here is the fully rewritten product page with the corrected kit composition and proper hierarchy.

The Hertz HSP2-24 A2B Harley Stage 2 stereo system is a high-output motorcycle audio upgrade designed specifically for 2024 and newer Harley-Davidson Touring motorcycles equipped with the factory A2B audio platform. This system is built for riders who want louder, clearer sound that holds up at highway speeds while maintaining compatibility with the factory Harley radio system.

Unlike basic speaker-only upgrades, the HSP2-24 A2B combines dedicated amplifier power, high-efficiency front speakers, and an added SV 165 NEO midrange pair to create a stronger and more dynamic front sound stage. That combination gives riders better vocal clarity, stronger midrange projection, and a more powerful overall listening experience while riding.

By pairing the Hertz SP 4.900 amplifier with motorcycle-specific SPL speakers and A2B integration, this kit delivers a serious improvement over factory Harley audio without requiring a full rear speaker system.

Explore more Harley stereo upgrades
→ /collections/harley-stereo-kits

Key Features

• Complete Harley Stage 2 motorcycle stereo upgrade
• Designed for 2024+ Harley-Davidson Touring motorcycles with A2B audio
• Includes Hertz SX165 NEO front speakers
• Includes Hertz SV 165 NEO 6.5-inch SPL midrange pair
• Includes Hertz SP 4.900 four-channel motorcycle amplifier
• Includes A2B interface module for factory radio integration
• Plug-and-play Harley-specific wiring and installation components
• Built for wind noise, vibration, and real-world motorcycle riding conditions

This system is designed to deliver a major increase in volume, clarity, and front-stage performance compared to the factory Harley audio system.

What’s Included in the HSP2-24 A2B Kit

The HSP2-24 A2B system includes the major components needed to create a stronger amplified front-stage motorcycle audio system.

Included components:

• (2) Hertz SX165 NEO 6.5-inch SPL coaxial speakers
• (2) Hertz SV 165 NEO 6.5-inch SPL midrange speakers
• Hertz SP 4.900 Class-D four-channel amplifier
• HD A2B integration module
• HHP14 power and ground cable
• mounting hardware and installation accessories

Together these components create a more advanced Harley Stage 2 stereo system that produces stronger output and better front-stage detail than a standard speaker upgrade.

Harley Davidson Fitment

The Hertz HSP2-24 A2B stereo system is designed specifically for 2024 and newer Harley-Davidson Touring motorcycles equipped with the factory A2B audio platform.

Compatible motorcycles may include:

• Street Glide
• Road Glide
• Road Glide Limited
• other Harley touring motorcycles equipped with A2B digital audio architecture

The included A2B interface module allows the amplifier and speaker system to integrate with the Harley factory audio network while maintaining normal system functionality.

Advanced Front-Stage Harley Audio Upgrade

The HSP2-24 A2B is more than a basic front speaker upgrade. This kit is designed to build a more powerful front-stage Harley audio system by combining coaxial speakers, dedicated midrange output, and amplifier power.

The addition of the Hertz SV 165 NEO midrange pair is important because it improves the system’s ability to project vocals and musical detail in the frequency range that riders hear most while riding. When combined with the SX165 NEO speakers, the system creates a louder, more focused front sound stage designed for Harley touring motorcycles.

This type of upgrade is ideal for riders who want a serious improvement in sound quality and projection without stepping all the way into a full rear-speaker Stage 3 system.

High-Efficiency SPL Speakers

The HSP2-24 A2B uses Hertz SPL Show series speakers, designed specifically for high-output motorcycle audio environments.

SX165 NEO Front Speakers

The SX165 NEO speakers are engineered for strong projection and efficient output. Key features include:

• neodymium magnet motor structures
• treated cones designed for motorcycle use
• high sensitivity for louder sound
• strong vocal and midrange performance at speed

These speakers are built to help riders hear music clearly in open-air riding environments.

SV 165 NEO Midrange Speakers

The SV 165 NEO 6.5-inch SPL midrange pair adds another layer of front-stage performance by increasing output and improving projection through the critical vocal and midrange frequency range.

These speakers are ideal for Harley riders who want:

• stronger midrange response
• improved front-stage detail
• better projection at highway speeds
• a louder and more aggressive motorcycle audio system

Together, the SX165 NEO and SV 165 NEO speakers give this Stage 2 system much more authority than a basic front-speaker-only setup.

SP 4.900 High-Output Motorcycle Amplifier

At the center of the system is the Hertz SP 4.900 four-channel amplifier, designed specifically for powersports audio applications.

Amplifier highlights include:

• 160 watts RMS × 4 channels at 4 ohms
• 250 watts RMS × 4 channels at 2 ohms
• up to 1000 watts total system power
• compact chassis designed for motorcycle installations
• efficient Class-D amplifier design for reliability

This amplifier provides the power needed to drive the SPL speakers and produce clean, high-output sound while riding.

A2B Integration Module

Modern Harley touring motorcycles use A2B digital audio networking, which requires specialized integration when upgrading the factory stereo system.

The included HD A2B interface module allows the amplifier to connect properly to the Harley audio platform while preserving factory radio controls and system communication.

This integration makes it possible to add high-performance aftermarket amplifier power and speakers without sacrificing the usability of the stock system.

Stage 1 vs Stage 2 vs Stage 3 Harley Audio Upgrades

Harley riders often upgrade their motorcycles in stages depending on how much output they want.

Stage 1 Upgrade
Typically focuses on replacing factory speakers while keeping factory power.

Stage 2 Upgrade
Adds dedicated amplifier power and stronger front-stage speakers for a major increase in output and clarity.

Stage 3 Upgrade
Adds rear saddlebag speakers to create a full front-and-rear amplified system.

The HSP2-24 A2B system represents a true Stage 2 Harley upgrade by combining amplifier power, front speakers, and midrange output for a more serious front-stage audio system.

Pair With These Motorcycle Audio Upgrades

Riders who want to continue building their Harley sound system often pair this kit with related upgrades.

Motorcycle Speakers
→ /collections/motorcycle-speakers

Motorcycle Amplifiers
→ /collections/motorcycle-amplifiers

Complete Motorcycle Audio Systems
→ /collections/motorcycle-audio

You can also view the included midrange component here:
Hertz SV 165 NEO 6.5-inch SPL Midrange Pair
→ /products/hertz-sv-165-neo-6-5-spl-midrange-pair

These upgrades help riders build more powerful Harley bagger audio systems designed for highway riding.

Specifications

Amplifier: Hertz SP 4.900 Class-D
Amplifier Power: 160W × 4 @ 4Ω / 250W × 4 @ 2Ω
Front Speakers: Hertz SX165 NEO 6.5-inch coaxial speakers
Midrange Speakers: Hertz SV 165 NEO 6.5-inch SPL midrange pair
Integration: HD A2B interface module
Power Cable: HHP14 power and ground cable

Frequently Asked Questions

Will the HSP2-24 A2B work on my 2024 Harley touring motorcycle?

Yes. This system is designed for 2024 and newer Harley-Davidson Touring motorcycles equipped with the factory A2B audio platform.

Does this system include an amplifier?

Yes. The kit includes the Hertz SP 4.900 four-channel amplifier, which provides significantly more power than the factory Harley radio.

Does this kit include the Hertz SV 165 NEO midrange pair?

Yes. The Hertz SV 165 NEO 6.5-inch SPL midrange pair is part of this system and plays an important role in improving front-stage projection and vocal clarity.

What makes this different from a basic front speaker upgrade?

The HSP2-24 A2B is more advanced because it adds amplifier power and dedicated midrange output, giving the system stronger projection, more detail, and much higher overall output than a simple speaker swap.

What makes a Stage 2 Harley stereo upgrade different?

A Stage 2 upgrade adds dedicated amplifier power and a stronger front speaker system, allowing the motorcycle audio system to play much louder and clearer than the factory Harley setup.

Can I add rear speakers later?

Yes. Many riders begin with a Stage 2 front-stage system and later expand to a Stage 3 Harley audio system by adding rear saddlebag speakers.

Will this upgrade help with highway riding noise?

Yes. High-efficiency SPL speakers combined with amplifier power are designed to improve sound projection and help the system cut through wind and road noise while riding.

Is professional installation recommended?

Yes. Harley audio upgrades require correct integration, amplifier mounting, wiring, and tuning. Professional installation helps ensure long-term reliability and the best overall sound performance.

Professional Harley Audio Installation

Stereo Installs specializes in Harley-Davidson stereo upgrades and motorcycle audio installation.

Our shop installs motorcycle sound systems for riders throughout Northeast Ohio including:

Mentor, Willoughby, Eastlake, Painesville, Cleveland

Stereo Installs
7471 Tyler Blvd STE B
Mentor Ohio 44060

(440) 525-2001

Our services include:

• Harley stereo installation
• motorcycle amplifier installation
• front speaker upgrades
• custom bagger audio systems

Professional installation helps ensure proper wiring, system tuning, and long-term reliability.