I have never heard of the D191 myself but I know for sure it isn't an Asian model. Japanese tend to only sell good quality electronics in Asia first and all those non-asian models that never appear in the region are usually crappy items that are not worth looking.
As a previos 955 owner, I would suggest you to try to locate a D777, D900/905. The line out and hp out will blow you away. If portability is not an issue, go for some even older PCDP such as D250 or DZ555. Hope this helps.