Hi i need to have a few of these devices ...as i use the interconnects and power cables and speaker cables in both my studio and my home theater system. In my opinion they are the best cables in the world pound for pound. I have been using them for over twenty years. I will be getting cables...

Hi there TypeR632 I am driving these headphones with a creative labs e5-  bluetooth connected to a sony xperia z1 .....it is worth it driving them with a amplifier . great sound .....good headphone.