Given what you’re looking for, a tubed NOS DAC would seem to be a great option. If cost is an issue I don’t think you’ll go wrong with the Mhdt Orchid (see recent 6moons review), but if you have a higher budget the Audio Mirror with upgrades looks very interesting too. Both offer trial periods so you can try before you buy, which is huge. My guess is you’ll notice improvements over your Vincent either way.
On the digital cable front, I’d recommend trying a $40 Apogee Wyde Eye cable (go balanced if you can) before spending several hundred dollars. I’ve used mine for many years, and it was John Atkinson’s (editor of Stereophile) reference for a while. It’s a neutral yet very natural sounding cable that I think will, in combination with either of the above DACs, do very well in delivering the qualities you’re looking for while saving you some $$$. Heck, not much to lose in trying and you can probably return it through Amazon if you don’t like it. Make sure you give some good hours for burn-in as usual, and definitely pay attention to the direction arrows if/when you install the cable (I installed mine backwards once and it was not good). Hope this helps, and best of luck.
https://www.amazon.com/dp/B01N6XL1XW/ref=twister_B01MUH69P1?_encoding=UTF8&psc=1
Best of luck.
On the digital cable front, I’d recommend trying a $40 Apogee Wyde Eye cable (go balanced if you can) before spending several hundred dollars. I’ve used mine for many years, and it was John Atkinson’s (editor of Stereophile) reference for a while. It’s a neutral yet very natural sounding cable that I think will, in combination with either of the above DACs, do very well in delivering the qualities you’re looking for while saving you some $$$. Heck, not much to lose in trying and you can probably return it through Amazon if you don’t like it. Make sure you give some good hours for burn-in as usual, and definitely pay attention to the direction arrows if/when you install the cable (I installed mine backwards once and it was not good). Hope this helps, and best of luck.
https://www.amazon.com/dp/B01N6XL1XW/ref=twister_B01MUH69P1?_encoding=UTF8&psc=1
Best of luck.