How LOUD ?? J&M ROKKER XT Harley Audio System from amplifier Watch Video
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Description: This is a step-by-step test of how loud, in decibels, that we can get the two fairing speakers to produce on a Harley Davidson Streetglide, using the stock Harley HK radio, 'J&M 500w 4-ch amplifier and Harley Stock, Focal & 'J&M ROKKER XT speakers, all as a comparision.
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