the shop that did the stereo in my lexus recommended DB Drive 2 way speakers for my F250. Is this brand any good? He says they scream pretty loud, but im not sure if i want to go with two ways. I have 4" 2 way fosgates in my lex, and they do allrite. I just want to know if this brand is any good, and what noticeable difference will i find between a 2 way and a 4 way? thanks in advance.