A local client recently brought his 2015 Harley-Davidson Street Glide to Ocala Car Audio for a sound system upgrade. He’d purchased audio upgrades for the bike from us a few years ago and installed them with the help of a friend. He decided that it wanted the system to sound better and play louder, so he brought the cool cruiser to us and explained his goals. After taking a look at his bike and talking about a few options, we put together a simple yet elegant solution that would meet his expectations.
Harley-Davidson Sound System Upgrade
We started this Harley stereo upgrade by removing the front fairing and the stock plastic speaker enclosure. We planned to install a set of Diamond Audio MP654 Pro-Series 6.5-inch coaxial horn-loaded speakers. Unlike conventional speakers, these drivers use an oversized horn-loaded tweeter and feature a massive 1.5-inch voice coil on the midrange driver. Even though they look gigantic, they fit into the stock speaker locations in the front fairing quite nicely.
As with any upgrade, choosing an amplifier that can deliver adequate power is crucial to getting great sound. We installed a Diamond Audio Micro84U amplifier on top of the radio inside the fairing. This amp is rated for 165 watts per channel, but it’s wired in what’s called bridged to provide a much as 300 watts to each speaker. So even with the volume on the radio cranked, there’s more than enough power to ensure that every word and music note will be crystal clear.
The icing on the cake for this upgrade was a Rockford Fosgate DSR1 digital signal processor. This compact and processor allows us to fine-tune the speakers’ output to deliver smooth frequency response that offers impressive realism. Why a DSP? All the best audio systems in clubs, stadiums and high-end car audio installations use them to get the best sound possible. On Harleys, they are a fundamental part of our upgrade packages, and they deal with the unpleasant equalization built into the factory Boom! Box radio.
Northern Florida’s Motorcycle Audio Upgrade Experts
With the installation complete, the client returned to pick up his motorcycle and check out the work. He was amazed at how good the audio system sounded. A few of his friends came by for similar sound system packages after hearing this one. If you’re looking for a fantastic audio system upgrade for your motorcycle, come speak with one of our Product Specialists. We usually have a few bikes around with upgraded stereo that you are welcome to audition. For more information, give us a call or send our team an e-mail using our website’s contact form.
When it comes to speaker upgrades for 
The MP654 speakers are based on a cast-aluminum basket that fits into most 6.5-inch speaker openings. The speakers use a low-mass woofer cone and single-winding voice coil to deliver extraordinary output from 110 Hz up to the 7 kHz crossover point with the horn tweeters. The horn tweeter features a 1-inch diaphragm at the rear of the speaker under a custom-tool aluminum heatsink. The tweeter’s output feeds through the center of the woofer then to the custom-tooled horn on the front of the speaker assembly. Think of them like a concert speaker in a tidy package that’s perfect for your motorcycle.
The owner of 
