Actually when I had the Hifiman HM-601, I could hear some sort of electrical noises or jitter when a scooter near me was starting up. Possibly noises from the ignition system or whatever that the CLAS and my Hifiman picked up.

Sometimes happen when I turn on the fluorescent light in my room.

This post has been edited by tunertoobe: Jul 4 2011, 07:54 PM