When I first received my VB's I thought I noticed a difference between the left and right balance, but since I was listening to them on my phone I couldn't play with the balance controls. Well yesterday I hooked them up to my laptop and started playing music through Winamp. I was then able to switch from right to left balance and there was a significant difference between the two sides. In order for the volumes to be the same in both ears i have to adjust the balance to 38% to the left. I contacted the member that I bought the VB's from and he is going to contact Jaben to see how I can resolve this issue. Hopefully Jaben will be cool about this!