I've now been listening to the Denon DCD 1600NE for just under three weeks. While there may be further break-in improvements, I think I've now got a firm sense of this player.
I'm still not wildly enthusiastic. The Denon is admittedly a big step up from my aged Sony SCD-CE 595, but that player is over 15 years old, and not as costly as the Denon to begin with. With an aftermarket power cord and interconnects, the Denon is a decent player, with respectable tone quality and dimensionality.
But as compared to other players with which I'm familiar -- the Consonance Droplet and Lector CDP -- the Denon is not really competitive in sound quality. These tubed players were just far richer, and more three-dimensional. To be fair, these were and are much more expensive pieces of equipment. I likely overestimated the improvement in sound quality that I could expect in the intervening 15 or so years since I'd last purchased a disc player.
I remain disappointed by the slow loading of the disc tray, and the inordinately long time the Denon takes to respond to commands. The fast forward function on the remote is particularly slow. But these are relatively minor points.
The Denon does do noticeably better with SACDs than it does with redbook. With the best-recorded and best-produced SACDs I have, it sounds quite good. But the vast majority of my collection is redbook CD.
I've decided to keep it, because I think at this price point ($1,199, delivered) I'm unlikely to find another new CD player that is significantly better all-around. But I think the Denon is destined to move to my secondary, office system, sooner or later.