[Katun]

I'm debating between these two headphones for my iAudio 7.
 
I've been leaning for the 2400 for the longest time, but the AD900 intrigues me.
 
Anyone have experience with these two? Or can recommend one?
 
I currently own the AD700, and briefly owned the K701 unamped.

 

[Katun]

No comments whatsoever?

 

[Sil3nce]

i would say the ad900 due to having had prior experience with the ultrasones.

 

[matthewh133]

The AD900 is a great headphone. Basically if you like your AD700s, it's the same sound signature but with a 35% improvement to the overall sound.