What is the loudest and cleanest sounding 6x9s i can get for about $120?

 

infinity

 

Make sure that you do not buy speakers that you will be underpowering. That is the biggest mistake most people make. They get speakers that will handle 50-100watts rms and then run them off of their deck. That will give you really bad sound reproduction as well as hurt your speakers almost as bad as overpowering them.