I found a Velodyne 12" 125 watt sub (1997) thats been reconditioned and tested with a price tag of $275.00 (comes with a 30 day warranty). The store that has this is a very good store and has a good rep. They also have a DT Super Cube III for $675.00. Not having purchased a used speaker before, I don't know what I should do. The Velodyne sounds good. Also if I spend the extra $$ I have less for another upgrade.