I just noticed I never changed the gain setting since I own the amp, the gain sits at 3, but I did not sense any problems with it at such a low gain setting(my normal listening level is around 9o'clock on the volume knob). It is said gain 10 is recommended for hd650. any thoughts? Thanks!

Hi, I use a nad 3020 amp to power the hd 650 headphone when I listen before sleep in bed. I put the headphone beside my head because wearing it during sleeping is very uncomfortable. The volumn has to be bigger than normal because it is not close to my ears. I saw on the amp that sometimes...

Hello, I want to buy a comfortable headphone that does not clamp my glasses. I have a hd650, but when I use it, I would take off the glasses. I hear that Bose is very comfortable but never tried. Can anyone give me some suggestions? Thanks!