2023.5+ Harley-Davidson 2-Speaker Audio System | Ground Zero / SounDigital
PRODUCT INFORMATION
2023.5+ Harley-Davidson 2-Speaker Audio System | Ground Zero / SounDigital
$1,488.57
$1,488.57
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2023.5+ Harley-Davidson 2-Speaker Audio System | Ground Zero / SounDigital
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2023.5+ Harley-Davidson 2-Speaker Audio System | Ground Zero / SounDigital
Upgrade a compatible late-model Harley-Davidson fairing with a complete two-speaker system built around Ground Zero GZCF 6.5SPL-NEO coaxial speakers, a SounDigital XP 800.4 amplifier, NAV-TV factory A2B integration and motorcycle-ready OFC power wiring.
The included 4-ohm speakers operate from two individual amplifier channels, providing clean front-fairing output while preserving two amplifier channels for a properly matched future expansion.
Complete Front Fairing System
- Compatible late-model Harley-Davidson applications
- Ground Zero GZCF 6.5SPL-NEO speaker pair
- 6.5-inch two-way coaxial construction
- 4-ohm impedance per speaker
- 100 watts RMS per speaker
- Neodymium speaker motors
- Integrated 1.1-inch Mylar tweeters
- GBS weather treatment for motorcycle use
- SounDigital XP 800.4 four-channel amplifier
- NAV-TV ZEN-H factory A2B integration
- Cicada Audio HDPG8K OFC power kit
- Factory-amplifier replacement configuration
- Two amplifier channels available for expansion
Ground Zero and SounDigital Harley Audio Upgrade
This Garage Bagger Stereo package combines the primary components required to replace the active factory-amplifier signal path and power a new pair of high-efficiency fairing speakers from the factory Harley-Davidson infotainment system.
The Ground Zero GZCF 6.5SPL-NEO is a compact two-way coaxial speaker that combines a fiber-reinforced paper cone, high-excursion surround, neodymium motor and integrated Mylar tweeter in one 6.5-inch speaker assembly.
The SounDigital XP 800.4 supplies four amplified channels. In the standard two-speaker configuration, one channel powers the left speaker and one channel powers the right speaker. The remaining two channels can support a properly matched future rear-speaker upgrade.
Harley-Davidson Fitment
2023.5 CVO Models
Intended for compatible late-production CVO motorcycles using the redesigned infotainment and factory A2B audio architecture.
2024+ Road Glide
Supports compatible redesigned Road Glide motorcycles after confirming the factory radio, amplifier, speaker mounting and fairing-clearance requirements.
2024+ Street Glide
Supports compatible redesigned Street Glide motorcycles after confirming the factory radio, amplifier, speaker mounting and fairing-clearance requirements.
Everything Included in the Audio System
Ground Zero GZCF 6.5SPL-NEO Pair
Two 6.5-inch, 4-ohm coaxial speakers rated for 100 watts RMS and 250 watts maximum per speaker.
Garage Bagger Stereo Weather Treatment
The included speaker pair receives added weather treatment for motorcycle fairing use before shipment.
SounDigital XP 800.4 Amplifier
One compact four-channel full-range amplifier providing up to 132 watts RMS per channel at 4 ohms.
NAV-TV ZEN-H A2B Interface
Converts the compatible factory Harley-Davidson A2B signal into low-level analog RCA outputs for the aftermarket amplifier.
Cicada Audio HDPG8K Power Kit
OFC 8-AWG amplifier power and ground installation kit configured for Harley-Davidson motorcycle audio installations.
Factory-Amplifier Replacement Configuration
The system is designed for an installation in which the stock amplifier is removed or bypassed from the active signal path.
Amplifier and Speaker Configuration
Front Speaker Channels
One 4-ohm Ground Zero speaker operates from one amplifier channel. Two amplifier channels power the complete left and right fairing speaker pair.
Future Expansion Channels
Two amplifier channels remain available for a properly matched pair of rear, lid or lower-fairing speakers.
Ground Zero GZCF 6.5SPL-NEO Coaxial Speakers
The GZCF 6.5SPL-NEO is engineered for efficient full-range output from a compact 6.5-inch platform. Its integrated tweeter eliminates the need for a separate fairing-mounted high-frequency driver.
100W RMS
Each speaker handles 100 watts RMS and 250 watts maximum.
4-Ohm Impedance
The fixed 4-ohm load works with one individual XP 800.4 channel.
93 dB Efficiency
High efficiency supports strong output from practical motorcycle amplifier power.
Neodymium Motor
Compact high-energy motor construction reduces depth and weight.
Integrated Mylar Tweeter
A 1.1-inch coaxial tweeter reproduces upper-frequency detail from the same speaker location.
GBS Weather Treatment
The speaker pair is treated by Garage Bagger Stereo for motorcycle fairing use.
SounDigital XP 800.4 Four-Channel Amplifier
The XP 800.4 is a compact full-range amplifier designed to provide four independently amplified channels from a motorcycle-friendly chassis.
132W × 4 at 4Ω
Published output for the included Ground Zero speaker load.
200W × 4 at 2Ω
Supports compatible future 2-ohm speaker configurations.
400W × 2 Bridged
Bridged power is available for properly matched 4-ohm applications, but is not required for this speaker pair.
Full-Range Response
Wide frequency response supports coaxial, component and mid-bass motorcycle speakers.
Adjustable Crossovers
Variable high-pass and low-pass controls support speaker protection.
Compact Chassis
The small amplifier footprint supports fairing-based installation.
NAV-TV ZEN-H Factory A2B Integration
The NAV-TV ZEN-H allows the compatible factory Harley-Davidson radio to supply low-level audio to the SounDigital amplifier without replacing the factory infotainment system.
A2B Signal Conversion
Converts the compatible factory digital audio signal into analog RCA outputs.
Eight RCA Channels
Provides up to eight analog output channels for aftermarket audio equipment.
Factory Control Retention
Retains supported volume, balance, fader, chimes, voice calls and factory EQ functions.
Power Wiring and Electrical Setup
The included Cicada Audio HDPG8K provides an OFC power and ground foundation for the amplifier installation.
- Disconnect the motorcycle battery before installation.
- Install primary fuse protection close to the positive battery terminal.
- Use secure, corrosion-resistant battery and ground connections.
- Protect wiring from steering movement, heat and sharp edges.
- Keep signal wiring separated from high-current power wiring.
- Confirm charging-system and battery condition before high-output use.
- Verify the final cable size and fuse configuration before powering the amplifier.
Gain and Crossover Setup
- Connect one 4-ohm Ground Zero speaker to each front amplifier channel.
- Do not bridge the included speaker pair in the standard configuration.
- Configure protective high-pass filtering for both front speakers.
- Set gain using measured clean output rather than by ear.
- Limit amplifier output to the speakers’ continuous-power capability.
- Confirm left and right speaker polarity before reinstalling the fairing.
- Do not use amplifier gain as a volume control.
- Reduce output immediately if distortion or mechanical noise occurs.
Installation Instructions and Resources
Ground Zero Speaker Information
Fairing and A2B Installation
Complete System Specifications
Fitment and Ordering Notes
- The system includes two fixed 4-ohm Ground Zero speakers.
- Each front speaker uses one individual amplifier channel.
- The standard configuration does not bridge the speakers.
- Two amplifier channels remain available for compatible expansion.
- Rear speakers and rear mounting components are not included.
- Verify speaker mounting diameter and depth before installation.
- Verify the correct Road Glide or Street Glide amplifier rack.
- Confirm all required adapters and speaker-output wiring.
- Verify the final power cable and fuse configuration.
- Correct gain and high-pass setup are required.
- Professional installation and tuning are strongly recommended.
Current Shipping Promotion
Enter code ShipOne at checkout for eligible free shipping. Current checkout eligibility and product exclusions apply.
Related Motorcycle Audio Categories
Late-Model Harley Audio
Amplifier and Signal Support
Ground Zero and SounDigital Audio System FAQ
Which speakers are included?
The package includes one pair of Ground Zero GZCF 6.5SPL-NEO 6.5-inch two-way coaxial speakers.
What impedance are the speakers?
Each included speaker has a nominal impedance of 4 ohms.
How much power does each speaker handle?
Each speaker is rated for 100 watts RMS and 250 watts maximum.
Are the speakers weatherproof?
Garage Bagger Stereo supplies the speakers with added weather treatment for motorcycle fairing use.
Which amplifier is included?
The system includes the SounDigital XP 800.4 four-channel amplifier.
How much power does the amplifier produce at 4 ohms?
The XP 800.4 produces 132 watts RMS per channel at 4 ohms.
Are the front speakers bridged?
No. The standard configuration uses one individual amplifier channel for each 4-ohm front speaker.
Are two amplifier channels still available?
Yes. Two channels remain available for a properly matched future speaker expansion.
What does the NAV-TV ZEN-H do?
It converts the compatible factory Harley-Davidson A2B signal into analog RCA outputs for the SounDigital amplifier.
Does the stock amplifier remain active?
No. This package is designed for a factory-amplifier replacement installation in which the stock amplifier is removed or bypassed from the active audio path.
Are rear speakers included?
No. Rear speakers, wiring and mounting components must be selected separately.
Is professional installation recommended?
Yes. The installation requires A2B signal integration, factory amplifier removal or bypass, battery wiring, amplifier mounting and measured gain and crossover setup.
Need Help Matching This Harley Audio System?
Garage Bagger Stereo can help verify motorcycle fitment, 4-ohm impedance selection, amplifier matching, speaker and amplifier mounting, power and speaker wiring and factory A2B signal integration before installation.