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RCA Cable Length = big power drops??
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<blockquote data-quote="ChrisCan" data-source="post: 1104945" data-attributes="member: 562951"><p>How bit a deal is the length of the RCA cables? I remember reading that you loose signal strength more if the cables are longer, how much are we talking about?</p><p></p><p>I just wired a 4 channel 75 Watt RMS channel to fronts and rears in my car. Although they sound good, it doesn't seem to be much louder than my old 30 Watt per ch 4 channel Rockford Fosgate amp. I also replaced my OEM speakers with some same sized aftermarket ones. The way I figure, it should sound louder and better- but right now, it just sounds better and not so much louder. My 4X75 amp is an Audiobahn A6004T, which I heard was over rated, but I figure it should still be noticeable louder.</p><p></p><p>I have some pretty long RCA cables from the head unit to the channels on the amp for the rears (probably they are 3-4 feet longer than needed- it was all I had), and they are the ones that seem not to be so loud (they are 6 1/2, the fronts are only 4" and sound almost as loud right now). I have both of then on a HPF, since I have trunk subs on a second amp. The amp gains to both are maxed out,</p><p></p><p>Could a longer-than-needed RCA cable make that much power difference? The amp is under my passenger seat, so it is not so far from the HU. I can shorten the cables pretty easy, but is this likely the problem? Are there other things I should check, too?</p><p></p><p>Power on the amp seems to be 13.8 V when engine is running.</p><p></p><p>Thanks,</p><p></p><p>Chris</p></blockquote><p></p>
[QUOTE="ChrisCan, post: 1104945, member: 562951"] How bit a deal is the length of the RCA cables? I remember reading that you loose signal strength more if the cables are longer, how much are we talking about? I just wired a 4 channel 75 Watt RMS channel to fronts and rears in my car. Although they sound good, it doesn't seem to be much louder than my old 30 Watt per ch 4 channel Rockford Fosgate amp. I also replaced my OEM speakers with some same sized aftermarket ones. The way I figure, it should sound louder and better- but right now, it just sounds better and not so much louder. My 4X75 amp is an Audiobahn A6004T, which I heard was over rated, but I figure it should still be noticeable louder. I have some pretty long RCA cables from the head unit to the channels on the amp for the rears (probably they are 3-4 feet longer than needed- it was all I had), and they are the ones that seem not to be so loud (they are 6 1/2, the fronts are only 4" and sound almost as loud right now). I have both of then on a HPF, since I have trunk subs on a second amp. The amp gains to both are maxed out, Could a longer-than-needed RCA cable make that much power difference? The amp is under my passenger seat, so it is not so far from the HU. I can shorten the cables pretty easy, but is this likely the problem? Are there other things I should check, too? Power on the amp seems to be 13.8 V when engine is running. Thanks, Chris [/QUOTE]
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