I sold the pair I bought because I prefered the darker sound of the second plus I agree the pair I was given should not be sold. Basically kingpage has nailed it though. I actually liked the warm sound of the IE8 and the M2, I just didn't want that warmth at the cost of the mids or the highs. So for me the MTPC2 really is the better IEM. Thats why it will be very interesting to see how I like the SM3 especially after listening almost exclusively to the MTPC2 for a couple of weeks. I will say this though, if the SM3 has any warmth to it (which I have read it does) and it is even more detailed than the MTPC I may be very happy with them. But until they arrive, it's all guessing.
What will also be intersting is whether I should use my burnin process on the SM3 or not. I know the BA's themselves will likely not change much if at all but I have read the crossovers get burned in, I'm just not sure if sound is what makes them change or just electrical current itself.
I guess I never gave a clear winner because I do feel they are both technichally great IEM's, they just do different things better.
Edited by dweaver - 6/23/10 at 7:11pm