radioactive28 0 Report post Posted April 7, 2006 (edited) I haven't seen much comparison between these 2, mostly because people are inclined towards the A900. I thought they're more of non-portables, and thus the open AD might be a better choice, but apparently, this isn't the case. Can anyone comment? I tested the A500 and AD500 at Stereo, and found them quite detailed, albeit a little bright, and with fantastic soundstage. Edited April 7, 2006 by radioactive28 Share this post Link to post Share on other sites