6x9 speakers with a nice base sound wanted

I have 6x9 in the dart my stereo unit is a Sony has separate bass mid and so on not a high dollar unit.I am looking for a 6x9 with a nice base sound to it is there such a speaker out there.I don't want to put in boom boxes,just something better than the Jensen I have now,witch by the way one keeps shorting out I have to hit the magnet to get it to work.