Cadence ZXN-6K 6.5" components - anyone know anything about them?

[kingrukus]

I have a set of Cadence ZXN-6K 6.5" components that I do not know much about. They were given to me along with a vehicle I bought many years ago.

Anyone know the specifications of them, and/or reviews on them?

Thanks

http://i6.photobucket.com/albums/y242/kingrukus/cadence07.jpg
http://i6.photobucket.com/albums/y242/kingrukus/cadence06.jpg