I don't think so. I believe the Denon 1600 is chroma bug free and it has basically the same video processing hardware. You may want to do a search on "Chroma Bug" because I believe I have seen lists of players that do and do not have the bug.
The Denon 900 does have the chroma bug, but if you use its progressive outputs, the bug will be masked somewhat by the Faroudja deinterlacer. The Denon 1600 does not have the bug. See this article for a description of the chroma bug.
The reason there is an appearance of the bug with the 900 is that it uses a different MPEG decoder (ESS) than the 1600 (Panasonic). As mentioned above, the Sage/Faroudja deinterlacer will mask it.