I have SONY XBA-N3AP as well as XBA-N3BP. My question: Is there anyway to differentiate between AP and BP models of XBA-N3? I had put similar cable in both and now don’t know which one is AP and which one is BP. The reason I would like to know is that XBA-N3AP has impedance of 16ohm whereas...

The latest additions to Sony's Hybrid Balanced Armature lineup. Feel free to share your thoughts on these. XBA-N3AP: http://www.sony.com.sg/electronics/in-ear-headphones/xba-n3ap XBA-N1AP: http://www.sony.com.sg/electronics/in-ear-headphones/xba-n1ap