My SM3 broke and now I am listening to my BA200s.
Just my quick comparison before I forget. Hope you will find it useful or at least appreciate the BA200 more.
Soundstage:
The SM3 can put sounds behind your neck and about 5 inches in front of your forehead. This depth is almost non existent with the Ba200. Width is just a little less on the BA200. Imaging is better with the BA200.
Sound Quality:
The BA200 sounds more natural. The SM3 has a way of adding color thus making vocals sound enhanced. They are darn good, but you know they were enhanced. Bass impact is less on the BA200. Instrument separation is also a little less, detail retrieval also one step behind the SM3. There is a noticeable difference in the treble quality and quantity, but all I can say, they are both very forgiving.
All in all, I think the Ba200 offers about 90% of what the SM3 offers at less than 1/2 the price. Switching between these 2 IEMs is easy and does not require too much adjustments. i would say the BA200 really is the SM3's baby brother.
Edited by Annafrancesca - 12/28/12 at 4:53pm