I have a 16 RGS my current system consists of Hertz MPX 165.3 6.5 in the fairing a Micro 4v2 amp. My goal is too as soon as mother nature let's spring arrive I would like to upgrade my system adding speaker lids and possible changing out from the Hertz. Are the DD Audio speakers worth taking those Hertz out and replacing them with the DD 6.5 and putting DDVO 6x9 in the bags? Outside of the DD being cheaper what's the biggest difference if I decide to go with the Hertz MPX 6x9 ? I also plan to get the Arc Audio 600.4 to push everything.

 

First that amp will do you justice. As for me, I took out the mpx 165's and put in some wdx 6 motos as the milles had ear piercing highs being pushed by the focal sport. The wdx are have better mid bass and not as ear piercing as the milles. You will loose bass in the rear with anything back there at 70 but I like the mpx 690 better than the vo's because of the mid bass and highs are better and I can hear that from the mpx 690's at 70+. I also suggest that before you commit to rears, read some threads here about lowers as they will provide you a better sound altogether going down the road than rear lid setup's. Just my 1.5 cents worth.