Yes, it is. I was just gonna test their sound a bit, but decided to record it when I heard the ticky noise. According to some, it's the fan controller causing it though. So I'm gonna have to check it a bit more thoroughly when I can.
---------- Post added 2012-07-27 at 12:12 PM ----------
A quick addendum: The noise appears to be caused by the fan controller. A resistor on the cable does not produce the same kind of noise at all.