Have your sound changed over time ?

[jonstatt]

I've had two pairs of Silver Phantom, and both changed from a bit bassy to more neutral after about 100 hours. Never experienced a change in sound due to FW updates.

Interesting. I had a single Phantom and then added a second one a few weeks later. The first one had about 100 hours on it, but I didn't become aware of any imbalance between the two speakers, which you would expect if there was such a change.