It's a big enough difference that I thought the lower model Yulong D18 outperformed the Teac by a fair margin. The DA8 outperforms the D18 by an even larger margin. Easily an order of magnitude better. Sell it and get the DA8, the only regret you'll have is that you didn't do sooner honestly.
That is a very big praise for the Yulong, since Audiostream gave the TEAC a pretty good review already. I think I will order one, in silver :)