RoaroftheTigerPeople tend to prefer the Pro 1's due to the fact that the soundstage is expansive and the IEM is great. I have them but not the Pro 2's, which I have heard to market more to the mainstream audience with a similar sound to the Pro 1's but remember adding more bass (which they did) will bring in the soundstage...at least that is what seems to be the consensus unless they did a dang sweet job but it is not what I have heard or read.