Hi all, I'm looking at these two iem's for my first iem purchase. I listen to bluesy rock, classic rock. A lot of the music I have is live audience recororded that has not really been e-qed right. Sometimes the lower frequencies in voices will mix with other lower frequencies and sound real muddy in cheap speakers and headphones. I have a pair of GradoSR 60i that handle this right, and before I purchace an iem i want to make sure they will handle it right. Will they keep things seperated enough to keep things from sounding muddy like the Grado's do, or do they not have enough in the lower range to make things sound good?