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Car Audio Equipment
Head Units
Pre-Out Voltages of Popular HU's.......
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<blockquote data-quote="frzninvt" data-source="post: 3057026" data-attributes="member: 560602"><p>The higher impedances associated with the RCA outputs assist with noise rejection and some Eclipse and Pioneer HU's have the reputation of having higher noise floors despite what the specifications say.</p><p></p><p>As long as your amps are optimized to the head unit's output voltage who gives a crap that the gains have to be turned up a little higher. I have never had problems with noise or output on Alpine head units and I have been using them since 1978.</p><p></p><p>In all my time of competing in IASCA in the mid 90's I sure did not see very many winning vehicles that sported Pioneer or Eclipse head units. Most were Alpine's with the 7909 being the HU of choice so that alone should tell you something. I guess noise doesn't matter these days since it is all about SPL these days. Maybe that noise helps your SPL numbers. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</p></blockquote><p></p>
[QUOTE="frzninvt, post: 3057026, member: 560602"] The higher impedances associated with the RCA outputs assist with noise rejection and some Eclipse and Pioneer HU's have the reputation of having higher noise floors despite what the specifications say. As long as your amps are optimized to the head unit's output voltage who gives a crap that the gains have to be turned up a little higher. I have never had problems with noise or output on Alpine head units and I have been using them since 1978. In all my time of competing in IASCA in the mid 90's I sure did not see very many winning vehicles that sported Pioneer or Eclipse head units. Most were Alpine's with the 7909 being the HU of choice so that alone should tell you something. I guess noise doesn't matter these days since it is all about SPL these days. Maybe that noise helps your SPL numbers. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] [/QUOTE]
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Pre-Out Voltages of Popular HU's.......
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