Are these subs any good?

Audio Wizard Bronze Member Username: Audiowizard69 Post Number: 51 Registered: Nov-05	Posted on Sunday, December 11, 2005 - 02:11 GMT i recently ran into some 12 inch cadence Z Ultra drives and i was wandering if thhese subs are worth buying?
Chauncey Brown Gold Member Username: Chaunb3400 Huntsville, Alabama U.S. Post Number: 2994 Registered: Jul-05	Posted on Sunday, December 11, 2005 - 03:14 GMT how much, they are an average company