[keroro152]

What is the different between these two? Gold any good?

 

[alphaphoenix]

You're better off doing a search on your question as there many duplicated threads with answers.   Here's my brief: both are good; if you want more bass and musical signature, go with the gold; for more neutral and analytical, go with the Copper. 

 

[lucozade]

Golds are warmer sounding with more bass ,yet the midrange sounds more natural to me if you do not mind the added warmth.
 
Coppers are a more sparkle and treble extention ,the midrange sounds a little unnatural or stretched for want of a better word to avoid the warmth of the golds but this has the effect of bringing out more details in the mids.