home RCA's for car stereo

[lowcru 10+ year member]

One of my friends went to target and bought a 15 foot wire for dvd home theater sound and used it for his car stereo they were only $15 and it sounds sweet. Has anyone ever tried this?

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[ramos 5,000+ posts]

Yes sir. I usually make my own rca's. With cat 5 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[lowcru 10+ year member]

what is cat 5?

 

[bootleg 10+ year member]

Eh, I don't like CAT-5 for that sort of thing, it's not enough guage for me.

 

[ramos 5,000+ posts]

Cat 5 is computer networking cable.

bootleg why is it not enough gauge for you ? It's just carrying the low level signal. If there is no noise then I don't see the problem. It's cheap and effective. But that's just MHO //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[chris229 10+ year member]

a RCA is an RCA no matter where they come from. A far as cat 5 thats is what I use and it's fine. Helps with loop area induction as you can have 4 channels wound together.

 

[splunky 10+ year member]

Cat-5 is not shielded. Why in Gods name would you use cat-5 for low level. No shielding is just asking for noise.

 

[chris229 10+ year member]

Originally posted by splunky Cat-5 is not shielded. Why in Gods name would you use cat-5 for low level. No shielding is just asking for noise.

if your saying that then you don't understand the fact that low freq noise isn't block by shielding. shielding only work for noise 1MHZ and above --- the noise we are refering to is in the audioible range 20-20,000hz.

 

[splunky 10+ year member]

Actually I'm talking about alternator noise wich is induced. Why do people insist in trying to make other people look stupid, or think they have it all figured out I have been doing this 13 yrs and I learn something new every day.

 

[splunky 10+ year member]

Noise from the alternator is very audible. Thanks though.

 

[splunky 10+ year member]

I geuss I better call monster cable they will be sad to know they have been making shielded interconnects for nothing.//content.invisioncic.com/y282845/emoticons/banghead.gif.8606515f668c74f6de0281deb475b6fd.gif

 

[chris229 10+ year member]

I'm not attacking you or anything. just informing you. First don't let a company tell you that they have a fix for a problem you never had. Hell people buy anything. Their isn't any reason not to sell shielded cable. PEOPLE BUY IT. I'm not saying shielding isn't useful. It is at EMF freqs above 1 MHZ. It good for shielding RADIO FREQ noise. for that reason it is good for cables that recieve OR transmit RADIO FREQS. As far as signals in an RCA as you know are between 20-20,000HZ and also the amps input freq range. There isn't a shield in the world to stop LOW FREQ EMF. It is a fact look it up. The only thing you can do to low freq emf is try to redirect and reshape it with high permeablitiy metals. The mu-metal and co-netic shields types help redirect the field BUT it is very expensive and not needed. You could put 1000 turns of foil on your wires and the effect wouldn't be any better than a roll of paper towels. The noise is picked up in a system using signals in the audioible range this tells you that the noise Freq must be in that range too. an alt whine is a 3,000HZ noise inducted noise.

 

[chris229 10+ year member]

the reason to use CAT-5 or any UTP is first ---- shielding doesn't matter. Second by twisting not only the conductor for each channel close together BUT the channels themselfeves too you have reduced the MAGNETIC LOOP AREA. This make it harder for noise to effect the signals magnetic field becuse you have reduced it. that is why the other guys runing signals in this same FREQ range --- telephone companies--- use it

 

[splunky 10+ year member]

Makes sense. Do you have any links to research papers or the like. This is very interesting. I am now in the home theatre business and have never heard this from anyone in the industry. Thanks for the info.

 

[phoneman 10+ year member]

I seen something a while back were the cat 5 was tested against regualer sheilded rca using a neon light, the digital screen showed alot more interferance with th cat 5, also the resistance of the2 are not even close. head unit preouts are matched for the different resistance of the - and + in the rca. were as the resistance of the - and + of cat 5 would be even not making it a perfect match, although most people cant tell any audible difference between the 2 unless they have a lot of interferance indtroduced around the system. But that is just what I read.