![]() ![]() When we connect to your radio, we can choose from many different factory speaker and amplifier combinations. ![]() ![]() We have tuned many audio systems over the years, and can honestly say that we have never seen an equalization curve with adjustments this extreme. There is another peak around 450 Hz and a huge dip at 4 kHz. You can see from the image above that there is a massive peak in the bass response at 80 Hz. We took some measurements of the frequency response of the signal coming out of the factory radio before we made any adjustments. This allows us to connect our laptop to the data communication network on your bike and change the settings in your radio. What if there was a way to turn off or reduce this factory-programmed equalization? We work on so many Harley-Davidson motorcycles that we have chosen to invest in a TechnoResearch Vehicle Communication Module programming interface. The problem is, most of these are moderately expensive and take time to set up. These processors work well and have very few drawbacks. Several products on the market provide the means to equalize the signal coming out of the Harley-Davidson Boom! Box radio. How to Compensate for Factory Equalization ![]() When we add an amplifier to your bike and use the factory equalization settings, the massive bass boost can overdrive the amp and damage it or your speakers. The tuning that made the low-quality speakers sound adequate will often make great speakers sound mediocre. The problem comes when we upgrade those cheap speakers to something better. Tuning can make cheap speakers sound much better, so it is an easy decision for automakers to pursue this technology. What is Factory Equalization?īoth motorcycle and vehicle manufacturers have realized that the implementation of some basic sound tuning can dramatically transform the performance of the audio system in the new cars and trucks they build. The radio flashing process is crucially important to the sound quality and reliable performance of an upgraded sound system on a Street Glide, Ultra Glide or Electra Glide motorcycle. You can call it programming, reflashing, reconfiguring or electronic voodoo if you want. Extreme Audio has invested in the equipment to make these modifications. Extreme Audio in Midlothian and Mechanicsville offers Harley-Davidson radio flashing for 2014 and newer Boom!™ Box-equipped bikes. ![]()
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