Welcome to Head-fi! I would recommend researching the sites forums for more info than I can provide. There is a wealth of it on here. Basically with the Q701 and it's cousins K701/702 they have the capacity to blossom sound wise with more power supplied than a typical headphone jack on an iPod or computer can provide. The headphones you have are capable of much more than you are now hearing.
7/17/14 at 6:02am