Originally Posted by Amarphael
I'd be really keen on a 7520 vs. CD900st comparison too, I have the CD900st and they're amazing headphones. Their tonal quality is some of the best i've heard regardless of the price and going from memory is an improvemnt from the Z1000 i had some time ago. Unlike some previous poster said, I find them to be very versatile sounding, as a good monitor should be. But the Z1000 was more dynamic iiirc.
I don't deny that they are amazing headphones. That should be obvious to anyone that has ever listened to them. However, I don't think they are good headphones for enjoying music (for me). While I sorta like the studio monitor sound, I think the CD900ST is *too* studio monitor-y. The CD900ST is purpose built for dissecting sound, and excel at it far beyond what other closed headphones I have ever heard, but I want to sit back and enjoy my music, and I prefer the V6/7506 for that.
As for me questioning why it was on and the 7520 was off, I have never heard the 7520, but I guessed that the 7520 was better was because:
-It's by the same company (okay, technically its Sony Music Entertainment/Sony Electronics, but still Sony)
-It's newer and more expensive
-It's designed to cater toward the same users
-The CD900ST is still in production