Orange 4x12

[charlie]

A while back someone posted something about their friend buying a new orange 4x12 cabinet and it being wired wrong. i recently bought an orange 4x12 myself and i have the sneaking suspicion it may be wired wrong as well. Or maybe i'm just crazy because i worry about my gear too much. But anyways, how do i tell if it's wired wrong? any help would be appreciated.

Thanks

[ecto coolest]

http://www.celestion.com/pro/wiring.htm#Impedance