🔊 The Ultimate Stealth Harley Build: Sweet Sounds Transforms a 2024 Street Glide with 3,000 Watts of Precision Audio
When it comes to motorcycle audio, there’s loud… and then there’s Sweet Sounds loud.
This 2024 Harley-Davidson Street Glide proves that you don’t need flashy grills or oversized components to create jaw-dropping power and clarity. From the outside, it looks completely factory — but hidden beneath those stock CVO bag lids and original Harley grills lies a meticulously engineered, 3,000-watt stealth audio system that delivers performance few riders have ever experienced.
This one isn’t just another upgrade. It’s a complete demonstration of what happens when premium components meet professional installation and tuning — the kind of precision work Sweet Sounds has been known for in Mankato, Minnesota for over 30 years.
🎛 Starting at the Source: Factory Head Unit with NAV-TV Zen-H Processor
On 2024 and newer Harley-Davidson models, audio integration isn’t as simple as tapping a speaker wire. To achieve true digital clarity, the factory radio must be converted correctly — and that’s where the NAV-TV Zen-H processor comes in.
This small but powerful module converts Harley’s internal digital signal into a pristine, full-range analog output that can be properly tuned and amplified. Without it, you’ll never hear the full potential of your amps or speakers.
Jeff and the Sweet Sounds team selected the Zen-H because it’s the most reliable and sonically accurate interface available. It provides the clean foundation every great system needs — no noise, no distortion, just studio-grade signal from the stock Harley head unit.
⚡ Power and Processing: Two Cicada Audio Amplifiers Deliver 3,000 Watts of Output
Once the Zen-H sends the audio signal downstream, it’s all business from there.
This Street Glide runs a pair of Cicada Audio amplifiers:
- FLX1400.4P four-channel amplifier with an integrated digital signal processor (DSP)
- FLX1600.1 mono amplifier delivering up to 1,600 watts RMS to the low-frequency drivers
The 1400.4P acts as the system’s brain, giving Sweet Sounds full control over equalization, time alignment, crossover points, and tuning flexibility for every channel. The DSP even provides a dedicated line output that feeds the mono amp — keeping the entire system digitally linked and perfectly balanced.
The result is seamless integration and total tuning control. Whether you want to focus on imaging, stage width, or sub-bass accuracy, these amplifiers make it possible to dial in every detail for the ultimate riding experience.
🔋 Power Supply: Limitless Lithium HD3 Nano Battery & Cicada Wiring
To handle this much output, we needed a serious power source. The Street Glide features a Limitless Lithium Nano-HD3 V3 battery — one of the most powerful and lightweight motorcycle batteries available.
Even during extended high-volume demos, voltage drop is practically nonexistent. The system runs cool, stable, and clean.
Feeding those amps are dual Cicada Audio 4-gauge wiring kits, featuring oxygen-free copper conductors, oversized power and ground cables, and premium fusing hardware. Every inch of wiring was routed with care to ensure long-term reliability and resistance to vibration — something Sweet Sounds takes pride in on every motorcycle, marine, and powersports build.
🔊 Front Stage: Audio Dynamics PCX640.2 Speakers
For the fairing speakers, Sweet Sounds chose the Audio Dynamics PCX640.2, a 6.5-inch coaxial horn set known for its high efficiency, accuracy, and dynamic range.
These speakers deliver stunning clarity even at extreme volume levels — clear vocals, crisp cymbals, and punchy midbass that cuts through wind and engine noise without harshness. Installed behind the factory Street Glide grills, they remain completely hidden yet sound far beyond what Harley’s OEM system could ever achieve.
Every listener who’s heard these speakers on our display wall or this demo bike walks away surprised — most say they’ve never heard this kind of detail from a motorcycle before.
🔉 Rear Stage: Cicada Audio CHX69.2 Pro Horn Coaxials
For rear fill, we used the Cicada Audio CHX69.2 Pro Horn Coaxials, installed neatly under factory CVO bag lid grills. These are true high-output motorcycle-grade speakers featuring compression horn tweeters and lightweight, weather-resistant cone materials.
They produce rich midrange and strong top-end projection, helping the sound stay balanced even when riding at highway speed with a full-face helmet. Like everything else on this build, they look 100% factory until you turn them on.
💥 Low-End Authority: Dual Cicada CMB10.S4 10″ Midbass Drivers
When it comes to bass, this Street Glide breaks all expectations.
Inside each saddlebag sits one Cicada CMB10.S4 10-inch midbass driver — a purpose-built motorcycle subwoofer designed to handle serious power and pressure in compact spaces. These were installed using the Cicada HD Port 3 kit, which vents each bag through a tuned 3-inch port for deep, efficient output.
To ensure the bags remain airtight and rattle-free, we used the Nagy Customs ring kit and bag seals — precision-molded composite and fiberglass components that completely seal the bags while integrating with the ports and speakers. The final result is a stealthy, weather-sealed design that’s just as durable as it is powerful.
And despite all that output, this system is completely vibration-free. Every panel was carefully damped, sealed, and reinforced, allowing pure, musical bass that you can feel without distortion or buzz.
🧰 Custom Amplifier Rack & Wiring Layout
Both amplifiers are mounted on a custom-fabricated amplifier rack built in-house by Sweet Sounds’ fabrication team.
This rack positions the amps securely, protects all connections, and allows airflow for cooling.
This rack design is currently under refinement as a Sweet Sounds prototype part — with plans for future production availability. It’s the kind of hidden craftsmanship most people will never see, but it’s a key part of what makes our installs dependable and serviceable long term.
All wiring is neatly loomed, soldered, heat-shrunk, and strain-relieved. That level of attention is what ensures the system performs flawlessly for years, not months.
🎚 Smart Control and Tuning
The rider can easily adjust subwoofer levels using a Cicada Audio bass knob, allowing instant control between full-system or front-only playback.
Each output channel is individually tuned by our technicians using an audio calibration rig and RTA analysis, optimizing crossover slopes, EQ curves, and time alignment for perfect balance between the front stage, rear fill, and substage.
We can demonstrate each configuration in-store — for example, listening to the front Audio Dynamics PCX640.2 speakers alone to appreciate their clarity, or adding in the subs for full-stage impact.
🏍 The Stealth Look, The Sweet Sounds Signature
Every visible surface of this bike retains the Harley-Davidson factory finish:
- OEM Street Glide front speaker grills
- CVO-style rear lids with factory grills
- Matching texture, alignment, and trim
It looks like a showroom-fresh Harley. But once it powers up, jaws drop. The clean midrange, deep controlled bass, and stunning vocal detail redefine what’s possible in motorcycle audio.
When we demoed this bike outside the shop, you could hear it clearly before you even stepped through the door. The sound presence rivals premium car and marine systems — yet it’s all concealed beneath Harley sheet metal.
💬 Hear It for Yourself
The owner of this new demo bike wanted something truly unique: factory stealth with elite sound quality. Mission accomplished.
If you’re considering upgrading your Harley, touring bike, or other motorcycle, Sweet Sounds in Mankato, MN offers complete sales, installation, and tuning for every product featured here — including:
- Cicada Audio amplifiers, speakers, wiring kits, and accessories
- Audio Dynamics speakers
- NAV-TV Zen-H processor modules
- Limitless Lithium power solutions
- Nagy Customs installation kits
We keep most components in stock year-round, ready for professional installation by our award-winning technicians.
📍 Sweet Sounds, Inc.
1418 North Riverfront Drive
Mankato, Minnesota 56001
📞 507-345-8863
🌐 Get a Quote for your bike here
Stop by our Mankato facility or call ahead to schedule a demo.
Want to see the whole video? Check it out on YouTube right here:
Whether it’s a Harley, a boat, or your daily driver — Sweet Sounds builds it better. Because at Sweet Sounds, every install is more than just loud. It’s engineered for perfection.
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