I thought it might be less expensive. I'm not sure a typical DAC also provides the HDMI pass through as well as the audio outs, but ultimately this is a DAC.
Glad he is enjoying the speaker. For someone who has not spent much time listening to good audio, it is hard to predict what will stand-out. I believe that anyone who has listened to many speakers in the $200/pr range would be impressed by the bass from the AA's, but knowing he is hearing a clarity he is not used to is a solid win!
Glad Dennis got his speakers out so quickly!