Interesting observation on the midbass of the UP line. I have the UP6i in my truck and I would have to say that the midbass is the weakest point.Very good, but research the difference between the different models before you buy.
MS6A will have more midbass than the UP6, but the UP6 comes with a slightly better tweeter. (I personally dont hear much difference in the UP1C vs UP6i tweets though.)
Personally I'd stick with the Reference line unless you want to spend the money and step up to Iridium or Nobelium sets. Stay away from the UP or UR series. The UP/UR aren't "bad" at all but they really do lack in the midbass. Midrange and Highs are quite nice, but imo not any better than the Reference line options.
Bang for Buck I've always liked the DLS Reference line of components.
Compared to ID? I dont know about the component sets, but I do have a pair of ID OEM mids. Good mids, great midbass, little rough to work with up top but not horrible. They're a bit large to fit in doors compared to the DLS offerings so keep that in mind too.
I had the Ultimate 3-way and I have to agree with you on the midbass. Didn't have much punch, but was ok for midrange.Interesting observation on the midbass of the UP line. I have the UP6i in my truck and I would have to say that the midbass is the weakest point.
Otherwise they sound great, clear detailed highs, smooth midrange... they just dont have a lot of midbass punch!