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tips, tricks, and obsticles thread

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Old Sep 21, 2006 | 04:35 PM
  #21 (permalink)  
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Originally Posted by P057
I just assumed the lines were a bit on the thin side for putting the signal through.

very interesting.
thats what i was thinking...i would like to find out more about this.
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Old Sep 21, 2006 | 05:03 PM
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Originally Posted by whitemk4jetta
thats what i was thinking...i would like to find out more about this.
arghh

RCA CABLES ARE NOT SPEAKER CABLE!

Speaker cable should be thick to carry the high wattage that flows through it, noise is not an issue because the voltage is so high on the line.

Typical RCA cables carry very low voltage signals so they are much more susceptible to noise.

The larger the core of the wire - the more noise it will pick up.

Computer network cable is designed to handle very very small voltages(around 200mv) with <.05% emi degridation. thats really good.
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Old Oct 4, 2006 | 03:34 PM
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Sorry to rebump this one up again Dalt.

What about headunits that put out 2,3,4, even 8volts of signal, wouldn't a limit of 200mv limit the signal?

just curious


Also Toby, if for some reason a system would receive emi noise does the would the twisted SPEAKER wire cancel out the noise picked up by the RCAs?

Thanks!
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Old Oct 5, 2006 | 04:05 AM
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One noise gets to the amplifier input, it is no longer noise...the amp just sees it as an input that needs to be amplified. So, there is no way to get rid of amplified noise from the output side. You either beat it before the amp, or you live with it.

Twisted speaker wire, imo, is for cosmetics only. The voltage is higher and the impedance is lower, so noise being injected into the speaker wires is almost never a problem.

Toby
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Old Oct 5, 2006 | 05:05 AM
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Hey, this is some good info.... I never thought of even using CAT5, like any other person, I always went with the hype and always bought what was expensive, it has to work, right..... Well obviously, this is something I wil be trying...
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