For anyone who wants a cheap good dac and owns an iphone i suggest using the iphone dongle and a decent cable. I always felt the iphone dongle sounded nice, though lacked a little gain and was surprised when ken kessler had also found the same and measured it. I was using it for youtube videos and realised it sounded pretty nice when connected to my main rig. It's musical, that's all I'm going to say. Someone at apple listened to it while designing.