I have been to several music stores in the past week trying to figure out how to redo my rig. A suggestion was made to me that conflicts with what I have heard before. It came from a bass player, so I gave it some thought. Here it is: He told me that a single 18" will produce a better low end than any 215, or single 15 around. I use Peavey Black Widows in my cab, and he told me a single 18 would still be better. According to him, an 18 can pick up frequencies way lower than a 15. He felt that matching a 118 with a good quality 210 will give me just about the best sound that can be had from a bass. I realize it is purely his opinion, since there is not "one" perfect bass rig. What do you all think? 118 better than 215? WHat would you choose?