Topic: CCA vs OFC Power Cable

[mypasso]

Hi guys,

Wanted to know the difference between CCA vs OFC power cable. Pro and con. How good or bad is CCA cables compare to OFC? Any bro currently using the cable please give your comment. Thank you for your feedback 

[Aye75]

err CCA you're talking about are you referring to copper clad aluminium ?

OFC - stands for Oxygen Free Copper

there's another one which from my understanding supposed to better is OCCOFC - stands for ohno continous cast

OCC is a process which is developed by the japaneese to ensure high purity of the copper used.

I think CCA was developed as a cost reduction technique .. haven't really researched.

anyway to me .. generic concept is, the purer the purer the copper the better and same goes to silver ... that's why you see 4 nines or six nines wire 99.9999 are selling at a much higher premium price.

[mnkh27]

http://caraudiomag.com/articles/copper-wire-vs-copper-clad-aluminum-wire-wire-warnings

this article is useful. read the temperature chart and power chart. copper cables are superior and safer to use but that does not mean cca cables cannot be used. it can be, for lower current usages.

of course some people may comment that our tnb is using cca also so it's good. all for cost savings and money in their pocket, no wonder we fall behind.

[carcrazy]

u can go for stinger cables as its a copper cable(but not high purity). Doesnt cost much so i dun see any need copper clad cables.

Very rare u see high purity copper cables in car audio market as car audio require high current, hence thick awg like 4awg, means a lot of thread count. So to market a high purity copper power cable will be too expensive and in some cases cost even more than an amp. So its not viable to sell unless special order by customer

Home hifi has lots of high purity copper cable as they require high voltage, hence dont need to be thick awg. So there is market for it and its sellable. at that premium price, they only require the most 2-3m onli unlike car audio.

So conclusion, high purity copper cable is not sellable in car audio market as its too pricey in terms of thick awg required(means more copper thread count) and long lengths required also. But if u insist to have high purity copper cable, the manufacture can special made for u.

Is there a diff high purity copper cable?
Definitely!!.. U can try to buy some high purity copper cable and use it for grounding onli.(short length mah) use it to ground all hu,preamp,amp and u shall hear the absolute diff.make sure the grounding is as thick as the power b+ input or more
Careful when the supplier says its high purity copper as most of the time is mixed.

Ohno cable
Even more premium!!!..easily cost rm6k and above to wire up the system
Is it worth it?
Depends on individual
Can u hear the diff without having golden ear?
Absofuckinglutely..lol

[mnkh27]

Absofuckinglutely <-- waaaa, i learn a new term today. will use in the articles. 

[krayden]

Luckily not Asshofuckinglutely

[andoropoi]

Really good infos from someone who knows....

[mnkh27]

Luckily not Asshofuckinglutely

wa you home ga!

[iamkroll]

im just curious. when u "ground", that means you close the circuit as when u weld the ground wire to the chassis, and chassis is connected to -ve of the battery terminal? is this right?

[finalazy84]

yes...ur right 

[iamkroll]

then im confused. because whatever wire u use, half of it is going to be the chassis of the car anyway. so i see it as a bottle neck. the chassis of a car cant be better than these wires? it wud be different if you "ground" it straight to the -ve, logic dictates.

this is also applicable to RCAs actually. im thinking no matter how awesome ur RCA wires are, usually behind the connectors, there will be a piece of wire connecting the RCA to the circuit board. so if this wire is not as good as the RCA wire, then it also acts as a bottle neck.

ive been thinking about this and i hope someone can clarify to me. maybe im just way ahead of myself 

[krayden]

tats why some high level sifu solder RCA direct to circuit board. no connectors at all.

[finalazy84]

about the grounding to car chassis, I think as long as u make sure the theres no paint restricting the wire from touching the car shud b fine. u can also wire it directly to the battry -ve terminal but that will cost alot.ur car is made from metal and it is bigger than ur cable  if u r worried, then add up more grounding cables at ur engine then 
about the RCA, if u r using hi end stuff, i think they notice bout that and did somthing on the wires behind the connectors.

[bafukie]

then im confused. because whatever wire u use, half of it is going to be the chassis of the car anyway. so i see it as a bottle neck. the chassis of a car cant be better than these wires? it wud be different if you "ground" it straight to the -ve, logic dictates.

this is also applicable to RCAs actually. im thinking no matter how awesome ur RCA wires are, usually behind the connectors, there will be a piece of wire connecting the RCA to the circuit board. so if this wire is not as good as the RCA wire, then it also acts as a bottle neck.

ive been thinking about this and i hope someone can clarify to me. maybe im just way ahead of myself 

If the amp grounding resistance is measured to be 0 ohms, where will be the bottle neck?

while i agree that wires inside the amp may be ur 'bottle neck', there are alot of other more important things that is more significant. Hell even the car u drive can be a bottle neck to good ICE..

[iamkroll]

hehe that may true. but why are we always advised to get high purity copper when half of the power cable is in the form of a chassis. if our car chassis is made of copper then lol, i guess it would make sense.

so theoretically, i can use whatever conductor i want to be used as power/grounding cables as long as the value of the resistance is close to 0 ohms? ofc, cca, ohno means nothing in the case of this?

ermm so if i conclude like this can ka? cables that carry power may not benefit from this different types of cables BUT cables that carry signal may benefit as cables can colour ur signal/sound?...... lol.

i dunno it still bothers me when you may buy a $1000/m cable but somewhere in the whole system there may lurk a $0.50c/m cable somewhere. it just doesnt make sense to me.