You guys are like little children. I have never heard of this DAP till today, I have no point of reference on the gear he is using, and therefore cannot extrapolate any meaningful information from his impressions.
But hey, sorry I stepped into these tongue baths you people are giving Toranku, he is always right, how could I forget.
Add:I don't own the Roland, his impressions are polar opposites of quite a number of people on head-fi. I have however owned both the IER-Z1R and the M9, couldn't get them back into the box fast enough.