I have the SB2 15" and have come to notice electrical noises aka "coil whine" coming from the right of the device (left of the device if the back is facing you). At first I thought it might be my Surface Dock causing the issue but low and behold even when nothing is attached to it, including the base, I can still hear it. It's not terrible but definitely noticeable from sitting distance, even 2-3 feet away. I'm pretty reluctant to get a new one because this one has great performance... Anyone else having this issue at all?