New Preamp or go Integrated

I’ve noticed since upgrading to the Contours my system sounds dry and lifeless. This could be that I haven’t allowed enough time to let the speakers burn-in, or the Vincent preamp is degrading worse than realized with the new speakers. Either way I enjoy a lively, detailed, holographic sound.

Yeah that sounds like what a lotta speakers sound like before they break in, and I’d reserve judgement and delay upgrading any equipment until you have at least 200 hours on the speakers to know better what direction you might wanna go from here.  That said, given what you’re looking for here are two good tube preamps that’d very likely deliver significant improvements over your Vincent…

https://tmraudio.com/fresh-arrivals/linear-tube-audio-microzotl-stereo-tube-preamplifier-level-2-upgrade/

https://www.usaudiomart.com/details/650260457-backert-rhumba-13/

Here are some good integrateds that’d also be very worth exploring…

https://www.usaudiomart.com/details/650276395-coda-csib-v1/

https://www.usaudiomart.com/details/650261223-unison-research-unico-150-power-amplifier/

https://tmraudio.com/fresh-arrivals/hegel-h390-stereo-integrated-amplifier-jbbn/

https://www.usaudiomart.com/details/650216120-hegel-h400-streaming-dac-integrated-amplifier-new/

I’d also strongly second the recommendation that a couple subs would greatly improve/expand your 3D soundstage/imaging if you can manage them at some point.  Just some options and thoughts FWIW, and best of luck. 

Modwright hybrid.

One tube to roll and replace. The phono stage inside is fantastic. Though I have no clue as to how they would work with your speakers.  Also what is your preference in music?

I would definitely consider the Rogue RP-7 ($5K new) or the RP-9.  I have the RP-7  with Odyssey Kismet monobloc solid state amps driving Fyne F-702 speakers and consider them to be exceptionally musical.  Great tonal qualities, easy distinction among various instruments, and superb three-dimensional sound stage that extends beyond the speakers in all dimensions with the right recordings.  I am contemplating upgrading to the RP-9 but wonder if the improvement will be sufficient to justify the expense. 
 

I strongly recommend giving the Rogues a listen if at all possible.

I have a PS Audio Stellar Gold preamp. In fact, I was one of the beta testers on the unit. Prior to getting the preamp, I was using my Directstream DAC Mk1 as the DAC/Preamp. Moving up to the separate preamp resulted in a huge improvement in SQ. I think separates gives one more flexibility in upgrading the system and in tailoring the sound to fit the user's preferences. It is a little more hassle, as there are more components to put in the rack, and more interconnects to deal with, but IMO well worth the inconvenience.

You already have a very nice, powerful, quality, power amplifier to go with your speakers and I'd just stick with it.  5K or less should get you a very nice (pre-owned) replacement preamp.  The easy route, and the best route, in this case, would be to just replace the preamp.  If space has become an issue (as it did with me) and you find yourself wanting to downsize and simplify your audio system, then I'd go with an integrated amp (as I did).  I have power hungry Revel Salon 2 speakers, so I went with the incredible Hegel H590 integrated amp (using an external DAC), and I've never been happier.  Happy listening.