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<blockquote data-quote="JoeM" data-source="post: 185767" data-attributes="member: 546649">Hi All.I have a US Acoustics 4085 for my front stage, but as of right now, I&#039;ve only installed the rear speakers (it&#039;s been cold, ok //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif)Anyway, with the back speakers being powered by the amp, the front speakers are still being powered off the head unit. They are the oem speakers. Now, the rear speakers are JL XR650 CXi Coaxials. Throughout the volume range, I&#039;m hearing a slight static noise under certain frequencies.I think it may be a ground problem for this reason. I grounded to the seat belt anchor, but I didn&#039;t sand the paint off the anchor, or of the sheet metal its bolted to. I did the same grounding on my last car, but removed the paint, and it sounded perfect. No static, and those were much cheaper speakers.Like I said, it&#039;s throughout the volume range, but it seems like it&#039;s only at certain frequencies, but I can&#039;t swear to that.Can you good folks help me out.-Joe-p.s. The enclosure Jmac designed for me turned out great. It rattles my teeth with a USX 600D amp and a JL 10w3v2. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif</blockquote>

[QUOTE="JoeM, post: 185767, member: 546649"] Hi All. I have a US Acoustics 4085 for my front stage, but as of right now, I've only installed the rear speakers (it's been cold, ok [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG]) Anyway, with the back speakers being powered by the amp, the front speakers are still being powered off the head unit. They are the oem speakers. Now, the rear speakers are JL XR650 CXi Coaxials. Throughout the volume range, I'm hearing a slight static noise under certain frequencies. I think it may be a ground problem for this reason. I grounded to the seat belt anchor, but I didn't sand the paint off the anchor, or of the sheet metal its bolted to. I did the same grounding on my last car, but removed the paint, and it sounded perfect. No static, and those were much cheaper speakers. Like I said, it's throughout the volume range, but it seems like it's only at certain frequencies, but I can't swear to that. Can you good folks help me out. -Joe- p.s. The enclosure Jmac designed for me turned out great. It rattles my teeth with a USX 600D amp and a JL 10w3v2. [IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] [/QUOTE]

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