Having lived now with my (second hand) Zanden DAC for 5 years or so...and having heard many digital SOTA players, i have now decided that [finally] the latest generation of digital products are definitively cleaner, clearer, far more resolving...it is no longer close when you compare a DCS Scarlatti for example. earlier generations might have seemed more detailed, but in fact might actually have just been more forward, a bit more strident after many hours of listening. But not this latest generation.
That said, given a choice, i am someone who would take less detail for superior tonality, ease, the ability somehow for my ears to listen to music...rather than sounds, decay, etc. And even relative to the mighty DCS SCarlatti, Wadia 7 (non-upgraded), krell 505, Emm...to my ears i have not yet been drawn away to consider another DAC. The DCS Scarlatti is stunning, and in the right system, i could easily understand why many would go for it. But to my ears, i still felt like i was listening to exceptional sound...whereas with the Zanden, unless i make a conscious effort to listen to sound...i inevitably end up listening to the music.
i have no idea why...it just does happen. And i think somehow other comments in this post and elsewhere suggest to me that i may not be the only one.
As hi-res starts to mature, i can imagine trading the Zanden in someday...but not in the foreseeable future. If anything, i continue to search for a reasonably priced Zanden transport (second hand) where i can do a partial trade/cash and just enjoy my music (with no thought for now about hi res). Particularly given the vast numbers of inexpensively priced CDs and Hybrid SACDs...not to mention loads and loads of new Remasters being done everyday which can be fantastic.
The only digital front-end that i would consider would be Stahl-Tek Opus (i have only heard non-Opus)...and at its enormous price...i am nowhere near considering it. I am happy to live with my 5-yr old second hand Zanden and consider myself extremely blessed to be able to listen to it every day.