My series 2's___ One speaker got dinged with a forklift so I have one speaker sitting here 'resting'; waiting for a 'mate'.--I can tell you,this is one lonely speaker. They did change the screws that attach the drivers and they now look better w/o the grills. I got the piano black and I find it more pleasing than the dark titanium.With the holidays and upcoming ces it may be more than a month before I have a 'set' in-house. And, like any new speaker the couple of hours I did put on them was disappointing compared to the older trade-in--(already in a good home)