Hi All, would both of these work with the CMOY amp?   I read that the higher the voltage the more dynamic range the CMOY has.   http://www.maplin.co.uk/p/maplin-6w-switched-mode-acdc-fixed-voltage-12v-power-supply-mg81c...

Hi All, I hope you can help?   I love the HD595's, the openness of the sound, the details and the soundstage. However, I now need to buy a pair of closed back headphones so I can use them at work without disturbing anyone.   Is there such a pair with the same sound signature of the 595's...