Higher End DACs

I have a Linn DSM Selekt with the upgraded Katalyst DAC. Linn makes great components and they are generally upgradable.  You can get a lot of flexibility for the cost with the DMS.  That being said, I've listened to the DCS Bartok and for my ears, it was superior in sound reproduction and imaging. I was really impressed.  I debate about upgrading all the time.  BTW-there is a used Bartok for sale now on AG without the headphone amp.

@ufguy73 - I've done a listen to the complete lineup up of DCS products.  They all build on each other. Each step up is an obvious improvement in sonic quality and soundstage.  However, I think you need the matching system to get the best out of them. 

I've a Audio Research Ref 3LE, VT80SE, Linn DSM with upgraded DAC & Wilson Sophia 3's.  I think the Bartok would provide an improvement in overall quality vs the Linn.  Not sure I'd do justice to the Vivaldi without an upgrade in the Pre and power amps.

But it also depends what else you want to do with your system.  Linn has greater options as far as connectivity that the DCS Bartok.  I only stream and occasionally hook up my TV to the Linn for the occasional movie.  If you want to add a turntable, TV, CD etc. then I'd look at Linn as an option over the DCS Bartok.  If you are just into streaming and have the rest of the system the DCS Bartok is great.

@ufguy73 - as far as sonic qualities for DCS...I've copied a couple sections from a review on the Bartok.

" This sounded amazing right out of the box but after a few days, a veil of fuzziness lifted from the Bartok DAC’s sound. It’s hard to describe but it just became more musical. it always had the resolution but everything became more round in a way that great audio offers...."So here’s what we hear: superb resolution of the recording details, a wide and deep soundstage, a gorgeous midrange."  Each step up the range builds on this.

To me DCS offers a very neutral, organic sound that is very musical in its presentation.  The background is dead black which allows you to hear levels of detail that you didn't know existed and the sound stage is great.  Live music feels live.  I'd suggest that you go have a listen as its the only real way to get a true feel for how your brain will hear the music.  If you are close to Dallas let me know and I'll send you the details of the local dealer here that I've worked with building my system.