Quote: It depends what you are using it for and what you choose to pair it with. There are eight! different versions of the Hifi-m8. see the first page of the impressions thread http://www.head-fi.org/t/662881/centrance-hifi-m8-and-hifi-m8-lx-8-versions-incoming-impressions-and-appreciation-thread I use an ipod touch 64GB with mine(I use FLAC on flacplayer app). Some would prefer the ipod classic due to the amount of GB space avaliable. I myself choose the idevice version backplate, with Unbalanced: 1/4″ jack, 1/8″ jack and Balanced 4-Pin XLR jack -frontplate.