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Car Audio Equipment
Head Units
2v Preamp vs 4v Preamp
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<blockquote data-quote="brmcm15" data-source="post: 7381081" data-attributes="member: 582398"><p>eclipse ftw brotha.</p><p></p><p>"Don't worry about the pre-out voltage, and simply set the gains correctly for the amplifier on hand.</p><p></p><p>The more important spec on pre-out (IMO) is the output impedance - the lower the better. The output impedance is more important because it determines how much noise rejection the output devices are capable of maintaining (rather than noise masking, as a higher RCA voltage does).</p><p></p><p>The Pioneer head units (typically) offer neither high voltage OR low impedance outputs, this in addition to the noisy and relatively poorly designed ground plane within the units, makes them very susceptible to noise right off the bat. Proper HU grounding is VERY important with Pioneer heads. If really THAT worried about it, get a different (i.e. better) head unit."</p><p></p><p><a href="http://www.the12volt.com/installbay/forum_posts.asp?TID=84618&amp;KW=nouseforaname" target="_blank">RCA output voltage, nouseforaname</a></p></blockquote><p></p>
[QUOTE="brmcm15, post: 7381081, member: 582398"] eclipse ftw brotha. "Don't worry about the pre-out voltage, and simply set the gains correctly for the amplifier on hand. The more important spec on pre-out (IMO) is the output impedance - the lower the better. The output impedance is more important because it determines how much noise rejection the output devices are capable of maintaining (rather than noise masking, as a higher RCA voltage does). The Pioneer head units (typically) offer neither high voltage OR low impedance outputs, this in addition to the noisy and relatively poorly designed ground plane within the units, makes them very susceptible to noise right off the bat. Proper HU grounding is VERY important with Pioneer heads. If really THAT worried about it, get a different (i.e. better) head unit." [URL="http://www.the12volt.com/installbay/forum_posts.asp?TID=84618&KW=nouseforaname"]RCA output voltage, nouseforaname[/URL] [/QUOTE]
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2v Preamp vs 4v Preamp
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