Hi there,   I recently got some Ultrasone pro900's and I'm really liking them, now i think it's time to upgrade my portable rig. I do like the s4's straight out of my ipod classic but I'd like to get something a bit better.   I've been looking at a few iem's but can't decide which...

Hi,   I'm looking for a pair of headphones for all sorts of electric music (house,trance,DnB,dubstep etc). I've been looking at the Ultrasone Pro900's which are about $300 on amazon at the moment but I would rather spend a bit less if the Pro900's aren't that much of an improvement.   ...

  Hi,   I'm considering buying the PC 360's and was just wondering what the sound quality can be compared to in other Sennheiser headphones.   I've heard from some sources that the driver is the same as hd555/hd595 but other sources tell me it's the same as the hd558/hd598.  I'm just...