So the HD650s were the first really good headphone that I ever had (well the Shure SRH840s weren't slouches). I got them with a broken headband, a headband pad that looked like a deflated balloon, and earpads that smelled like they had been stored in an ashtray. Other than that they were mint! After some gentle resuscitation, cleansing, and DIYing, I had a wonderful sounding pair of headphones. Well my Headfi journey has taken me through many headphones (dozens) including orthos some TOTL dynamics and the like, but the HD650s stayed in the stable until I found the HD800s. At the time I was so enthralled by everything the HD800s did that I ended up selling the HD650s both because they weren't being used anymore and I was trying to recoup funds. I didn't regret it until recently as I realized as much as I still adore the HD800s, I was missing just a little bit of romance and warmth from my music. Funny enough it is was adding a touch of warmth and romance to my HD800s via a Schiit Vali that reminded me of what I was missing. Well, I am so happy to say, that as of today, I have returned home, so to speak, in my Headfi journey and once again own a pair of HD650s. They are everything I remember and more (these were new in box), and will never be leaving again.