Introducing the all-new TMA-1000x4i Digital Amplifier, where uncompromising precision meets relentless power. Engineered exclusively for 2024 and newer Harley-Davidson® motorcycles equipped with Skyline® OS, this amplifier redefines motorcycle audio performance. Packing 1,000 watts of power into a compact, Element-Ready™ chassis, the TMA-1000x4i is built to dominate on the open road. No radio flashing. No hassle. Just seamless integration, Bluetooth® connectivity, and refined output. This amplifier is only sold with the HD24-STG2 & HD24-STG3 kit.
Relentless Power: Delivering 1,000 watts of dynamic power, the TMA-1000x4i Digital Amplifier is built for serious performance. At its core is a high-efficiency flat wire power transformer that boosts power density, giving you more output in a smaller footprint. Its dual-tier heatsink design takes thermal management to the next level, keeping it cool under pressure, so the power never quits, no matter how hard you push it.
Direct Digital Integration: Engineered for 2024 and newer Harley-Davidson® motorcycles with Skyline® OS, the TMA-1000x4i integrates seamlessly via a direct A2B digital input using our proprietary RF Link communication system. That means full power, zero hassle and no need to flash the factory infotainment. Just connect and ride.
Total Control: With the RF Connect app, tuning your system is as easy as tapping your screen. Connect to the amplifier via Bluetooth® to instantly load a DSP tune matched to your exact Rockford Fosgate® motorcycle audio kit. You can also fine-tune your ride by adjusting gain and crossover settings digitally, customizing your sound, your way, all from your smartphone.
Element Ready™: Purpose built for the harsh motorcycle environment. This amplifier is designed to stand up to water, dirt, UV, and motorcycle vibration, ensuring that your audio will stand the test of time.
Compatibility Chart: Please review below tab for fitment before purchasing.
TMA-1000X4i Amplifier | Launch
TMA-1000X4i Amplifier | Overview
TMA-1000X4i Amplifier | Installation
Download RF CONNECT™ required to setup the amplifier:
The TMA-1000X4i is a 1,000 Watt 4-channel amplifier purpose-built for aftermarket Harley-Davidson® audio upgrades with support for up to 8-speaker systems. The amplifier features a built-in A2B interface for direct and seamless integration with the Harley-Davidson® Skyline™ OS. IPX4 and Element Ready™ protection allows the amp to withstand the harsh outdoor elements like water spray, dust, and UV rays. Several advances in cooling technology have been combined with our legendary unregulated power supply to deliver high dynamic power output in an unprecedentedly small chassis.
Works Best With:
• RFK-HD24 amp install kit
Engineered to be loud, clear, and relentless, the new 2024+ audio kits deliver perfectly balanced sound—rich mids, strong bass, and ultra-sharp highs.
Engineered exclusively for 2024 and newer Harley-Davidson® motorcycles specifically equipped with the Skyline® Infotainment system, this amplifier redefines motorcycle audio performance.
We’ll walk you through the installation process for our new aftermarket Stage-2 and Stage-3 audio systems for 2023.5 and newer Harley-Davidson models with the newer Skyline™ OS.
Reduces the amplifier’s idle current and thermal load when volume is muted or reduced to zero, allowing it to enter an active recovery state and rebuild its thermal capacity for peak performance. Once the volume increases, the amplifier instantly turns back on, allowing the amplifier to play for longer durations.
An advanced, precision-machined internal frame – combined with our MEHSA4 substrate – maximizes heat dissipation, ensuring sustained power, cooler operation, and uncompromised amplifier performance. This allows amplifiers to have a smaller footprint yet produce big power.
Get maximum performance from your Rockford Fosgate Stage Kit by loading our signature DSP tunes through the RF Connect app. Developed by our engineers using a 6-microphone array, these DSP presets feature precision crossover, gain, and limiter settings, optimized for open-air audio performance. With over 45 years of tuning expertise at your fingertips, DSP presets take the guesswork out of tuning your audio system, allowing you to instantly achieve high-performance output with confidence.
The Pure-Flow design features an intentional mirror-image printed circuit board layout that ensures clean, uncompromised performance – input to output – without channel variations.
Flat wire transformers offer greater surface area for higher current handling, improved high-frequency performance, and cooler operation. The machine-wound, symmetrical design ensures consistent quality and eliminates flux issues seen in a hand-wound toroid. E-style cores further enhance efficiency by reducing winding length and resistance.
• Runs Cooler
• Higher Power & Efficiency
• Consistent Quality & Reliability
Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your amplifier's ...
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Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.
All components are protected against harsh outdoor elements like Dust, UV, Temperature, Water, Corrosion & Vibration.
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All components are protected against harsh outdoor elements like Dust, UV, Temperature, Water, Corrosion & Vibration.
Protects from splashing water, no matter the direction.
With Bluetooth® connectivity it’s easy to control your music and take your playlist with you no ...
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With Bluetooth® connectivity it’s easy to control your music and take your playlist with you no matter where you go.
The built-in A2B interface allows for premium audio connection to Skyline OS without the need for ...
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The built-in A2B interface allows for premium audio connection to Skyline OS without the need for external black-boxes
The integrated Digital Signal Processor allows all tuning functionality to be performed on-board without requiring external ...
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The integrated Digital Signal Processor allows all tuning functionality to be performed on-board without requiring external boxes.
Recognition of input/output clip detection with indicator LEDs
Power supply circuit design that allows the amplifier to increase output power as voltage increases.
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Power supply circuit design that allows the amplifier to increase output power as voltage increases.
Communication protocol allowing multiple Rockford Fosgate products to link-up with each other to provide intelligent control.
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Communication protocol allowing multiple Rockford Fosgate products to link-up with each other to provide intelligent control.
Constant Power is a patented circuit topology that provides instantaneous delivery of output power over varying ...
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Constant Power is a patented circuit topology that provides instantaneous delivery of output power over varying impedance loads.
A full-range version of the Class-D topology which is a high efficiency amplifier design that reduces ...
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A full-range version of the Class-D topology which is a high efficiency amplifier design that reduces current consumption from the charging system.
Dynamic Thermal Management evenly distributes excess heat across entire amplifier heatsink.
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Dynamic Thermal Management evenly distributes excess heat across entire amplifier heatsink.
DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and ...
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DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.
These Avatars are a personal signature from the Rockford Fosgate team member(s) who designed and engineered ...
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These Avatars are a personal signature from the Rockford Fosgate team member(s) who designed and engineered this fanatic product. This statement illustrates our commitment to being Designed and Engineered in the U.S.A.
Components are tested for salt spray corrosion resistance.
Displays and motor structures are sealed tight so they look and sound as clear as possible ...
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Displays and motor structures are sealed tight so they look and sound as clear as possible no matter how many times you hit the trails.
IPX Ratings allow for the components to be directly sprayed with water without ingress.
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IPX Ratings allow for the components to be directly sprayed with water without ingress.
Components are able to withstand shock and vibration conditions common with outdoor vehicles.
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Components are able to withstand shock and vibration conditions common with outdoor vehicles.
CTA-2006 Continuous Power Rating CTA-2006 Dynamic Power RatingYES Model IS compatible |
NO Model NOT compatible |
NOT AVAILABLE Model not produced this year |
|---|
YES SKYLINE™ OS |
|---|
 MODEL |
CHASSIS |
2023 |
2024 |
2025 |
|---|---|---|---|---|
 Road Glide® |
FLTRX | X | ✅ | ✅ |
 Road Glide® ST |
FLTRXST | X | — | — |
 Road Glide® Special |
FLTRXS | X | — | — |
 Road Glide® Special 120th Anniversary |
FLTRXSANV | X | — | — |
 Street Glide® |
FLHX | X | ✅ | ✅ |
 Street Glide® ST |
FLHXST | X | — | — |
 Street Glide® Special |
FLHXS | X | — | — |
 Street Glide® Special 120th Anniversary |
FLHXSANV | X | — | — |
| MODEL |
CHASSIS |
2023 |
2024 |
2025 |
|---|---|---|---|---|
 Electra Glide Highway King |
FLHFB | X | — | — |
 Road King® Special |
FLHRXS | X | X | X |
| MODEL |
CHASSIS |
2023 |
2024 |
2025 |
|---|---|---|---|---|
 Road Glide® Limited |
FLTRK | X | X | — |
 Street Glide® Ultra |
FLHXU | — | — | ✅ |
 Ultra Limited |
FLHTK | X | X | — |
 Ultra Limited 120th Anniversary |
FLHTKANV | X | — | — |
 Ultra Limited Shrine Edition |
FLHTK | X | — | — |
| MODEL |
CHASSIS |
2023 |
2024 |
2025 |
|---|---|---|---|---|
 CVO Road Glide® SKY2 |
FLTRXSE | ✅ | ✅ | ✅ |
 CVO™ Road Glide® RR |
FLTRXRRSE | — | — | ✅ |
 CVO Road Glide® ST SKY2 |
FLTRSXTSE | — | ✅ | ✅ |
 CVO Road Glide® Limited 120th Anniversary |
FLTRKSEANV | XRF1 | — | — |
 CVO Street Glide® SKY2 |
FLHXSE | ✅ | ✅ | ✅ |
| MODEL |
CHASSIS |
2023 |
2024 |
2025 |
|---|---|---|---|---|
 Freewheeler®NR |
FLRT | X | X | X |
 Road Glide 3 |
FLTRT | X | X | X |
 Tri Glide® Ultra Classic® |
FLHTCUTG | X | X | X |
| Tri Glide® Ultra 120th Anniversary |
FLHTCUTGANV | X | — | — |
GRAY TEXT
indicates nomenclature used on some early models and later inherited.
2
H-D® Power Lock for touring luggage not compatible with 6x9" bag-lid kit.
3
Saddlebags must be factory Harley-Davidson® ABS plastic to insure proper fitment with bag-lid and subwoofer kits.
Fiberglass saddlebags and bag-lids not compatible.
4
Stretched Saddlebags not optimized for kits with subwoofers. Contact technical support for suggested harness brace.
5
Tour-Pak® must be detached in order to install and remove subwoofer enclosures.
NR
No Radio equipped from factory.
RF1
RF Stage I: Not upgradable. Factory equipped with "Harley-Davidson Audio Powered by Rockford Fosgate" 2-way speakers and saddlebag amplifier.
RF2
RF Stage II: Not upgradable. Factory equipped with "Harley-Davidson Audio Powered by Rockford Fosgate" 3-way speakers and saddlebag amplifier.
SKY1
Skyline RF Stage I: Factory equipped with Skyline OS and "Harley-Davidson Audio Powered by Rockford Fosgate" 2-way speakers and fairing amplifier.
SKY2
Skyline RF Stage II: Factory equipped with Skyline OS and "Harley-Davidson Audio Powered by Rockford Fosgate" 3-way speakers and fairing amplifier.
— Boom!™ is a Trademark of Harley-Davidson USA, Inc.
— Harley-Davidson®, H-D®, Road King®, Road Glide®, Street Glide®, Ultra Classic®, Tri Glide®, Freewheeler®, and Tour-Pak® are Registered Trademark of Harley-Davidson USA, Inc.
— SiriusXM® is a Registered Trademark of Sirius XM Radio Inc.
Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.
Rockford Fosgate products are built to work together seamlessly for the ultimate experience.
+
The RFK-HD24 is an aftermarket amplifier installation kit designed specifically for the Rockford Fosgate TMA-1000X4i amplifier. The system features an Skyline™ OS interface connector, amp mounting plate for Road Glide and Street Glide, and a complete plug-and-play wiring harness for uncompromising precision with a true plug-and-play system. This installation kit is only sold with the HD24-STG2 & HD24-STG3 kit.
Plug and Play Design: A true plug-and-play solution in a single box, complete with direct fit model-specific amplifier mounting plate. Designed to seamlessly integrate with the Harley-Davidson® Skyline™ OS — eliminating the need to flash the radio — making installation truly effortless.
Element Ready™: Purpose-built for the harsh motorcycle environment, this kit includes watertight, grommeted installation harnesses with OEM-style and Deutsch™ DT connectors. Designed to withstand water, dirt, UV exposure, and constant vibration, it ensures long-lasting, reliable audio performance.
Compatibility Chart: Please review below tab for fitment before purchasing.
2024+ Stage-3 for Harley-Davidson | Launch
2024+ Stage-3 for Harley-Davidson | Overview
2024+ Stage-3 for Harley-Davidson | Installation
Download RF CONNECT™ to setup the amplifier:
Click to explore some of the products that work best.
The RFK-HD24 is an aftermarket amplifier installation kit designed specifically for the Rockford Fosgate TMA-1000X4i amplifier. The system features an Skyline™ OS interface connector, amp mounting plate for Road Glide and Street Glide, and a complete plug-and-play wiring harness for uncompromising precision with a true plug-and-play system. This installation kit is only sold with the HD24-STG2 & HD24-STG3 kit.
Plug and Play Design: A true plug-and-play solution in a single box, complete with direct fit model-specific amplifier mounting plate. Designed to seamlessly integrate with the Harley-Davidson® Skyline™ OS — eliminating the need to flash the radio — making installation truly effortless.
Element Ready™: Purpose-built for the harsh motorcycle environment, this kit includes watertight, grommeted installation harnesses with OEM-style and Deutsch™ DT connectors. Designed to withstand water, dirt, UV exposure, and constant vibration, it ensures long-lasting, reliable audio performance.
Compatibility Chart: Please review below tab for fitment before purchasing.
2024+ Stage-3 for Harley-Davidson | Launch
2024+ Stage-3 for Harley-Davidson | Overview
2024+ Stage-3 for Harley-Davidson | Installation
Download RF CONNECT™ to setup the amplifier:
Click to explore some of the products that work best.
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