I've asked some fellow Celestion Kingston owners what type of speaker wire they use/used. They were both American and I haven't even heard of these cables- Google didn't throw up a huge amount either...:
Straightwire Crescendo LS
and
Granite Audio Model 573 99.9999% Pure OFC Copper bi-wire version
Cheers
Straightwire Crescendo LS
and
Granite Audio Model 573 99.9999% Pure OFC Copper bi-wire version
Cheers