Originally Posted by
fondoo 
hello fellow head-fi-er's,
i am a newbie to headphone cabling.
what is the difference between cooper and silver headphone wires?
>> The electrical conductance but this is marginal IMO and the price.
are one better than the other?
>> Depends on what do you want. Objectively silver wire may be better (see your first question). Other members also claim different sounds when using either silver or copper..
if so, where can they be purchased by the foot?
>> In my opinion homegrown audio has it per foot.
i would like to recable my grado sr80i,
what do i need?
>>Some experience, soldering station, multimeter, wire, plugs etc.
where can all these be purchased?
>> Redco Audio, Partsconnexion will be good addresses for example or any other store like them.
1/8 plug? "y" heat shrinks?
>> See above. Y-splits are normally DIY or get a commercial one like one from ViaBlue..
fabric jackets, etc...
why do they braid the wires?
>>Cosmetical aspects and the wire is getting stronger against mechanical stress (Main reasons).
thanks in advance.