We are a Rockford Fosgate authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
The Rockford Fosgate HD9813RK-STAGE2 Motorcycle Amplifiers kit is the kind of upgrade that completely transforms your ride. Designed specifically for 1998–2013 Harley-Davidson Road King models, this Stage 2 system delivers a full audio overhaul with stronger output, better clarity, and seamless factory integration. At its core is the TM400X4ad 4-channel amplifier pushing 100 watts RMS per channel, giving you clean, powerful sound across multiple speaker setups. Add in built-in Bluetooth streaming and flexible input options, and you get modern audio control without losing that classic Harley feel.
This kit is not just about volume, it is about performance that lasts. The Class-AD amplifier design keeps power efficient while reducing strain on your bike’s electrical system, so you can ride longer with consistent output. A 3-stage thermal airflow system with dual fan cooling keeps temperatures under control even when you are pushing the system hard. CLEAN level setting makes tuning easy with built-in clip indicators, while adjustable Butterworth crossovers and Punch EQ controls let you fine-tune your sound exactly how you want it, from deep bass to crisp highs.
Built with Element Ready materials, this system is made to handle rain, dust, UV exposure, and long rides without missing a beat. The saddlebag-mounted TMS69BL9813 speakers use Santoprene suspension and VAST surround technology to deliver bigger sound and better bass response from a compact setup. Installation is just as dialed in, thanks to the included RFK-HDRK mounting system, templates, and pre-configured OFC wiring harnesses that keep everything clean and efficient. With CEA-compliant power ratings and wiring standards, you are getting performance you can trust every time you hit the road.
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We are a Rockford Fosgate authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
The Rockford Fosgate HD9813RK-STAGE2 Motorcycle Amplifiers kit is the kind of upgrade that completely transforms your ride. Designed specifically for 1998–2013 Harley-Davidson Road King models, this Stage 2 system delivers a full audio overhaul with stronger output, better clarity, and seamless factory integration. At its core is the TM400X4ad 4-channel amplifier pushing 100 watts RMS per channel, giving you clean, powerful sound across multiple speaker setups. Add in built-in Bluetooth streaming and flexible input options, and you get modern audio control without losing that classic Harley feel.
This kit is not just about volume, it is about performance that lasts. The Class-AD amplifier design keeps power efficient while reducing strain on your bike’s electrical system, so you can ride longer with consistent output. A 3-stage thermal airflow system with dual fan cooling keeps temperatures under control even when you are pushing the system hard. CLEAN level setting makes tuning easy with built-in clip indicators, while adjustable Butterworth crossovers and Punch EQ controls let you fine-tune your sound exactly how you want it, from deep bass to crisp highs.
Built with Element Ready materials, this system is made to handle rain, dust, UV exposure, and long rides without missing a beat. The saddlebag-mounted TMS69BL9813 speakers use Santoprene suspension and VAST surround technology to deliver bigger sound and better bass response from a compact setup. Installation is just as dialed in, thanks to the included RFK-HDRK mounting system, templates, and pre-configured OFC wiring harnesses that keep everything clean and efficient. With CEA-compliant power ratings and wiring standards, you are getting performance you can trust every time you hit the road.
