Copper/aluminum coils?

Snarl2004 Gold Member Username: Snarl2004 Digital Design 9515, Massive Audi... Post Number: 2407 Registered: Dec-06	Posted on Monday, August 11, 2008 - 05:19 GMT can someone tell me the pros and cons to aluminum and copper coils? Basicly whats the difference?
Yanks Fan Platinum Member Username: Nyyfan13 15 Mag USA Post Number: 10176 Registered: Jul-06	Posted on Monday, August 11, 2008 - 05:29 GMT http://www.caraudio.com/forum/showthread.php?t=336399&highlight=copper+aluminum