That all depends on how much you are willing to pay and what kind of competitions you are going into. If you are doing IASCA then you're right you want to keep your power down. If you are going DB drag, well then the bigger the better. IASCA is classed by watts, and DB Drag is classed by number of subs. If you are infact going DB Drag then you are going to need one of the big dogs to keep up. Unfortunately there aren't very many cheap cheeter amps out there like the Orion's anymore.
