OP, if you are poised to purchase Tannoy’s in near future, I would not spend a dime on any other component now. It’s important to get the synergy right between your Integrated and Speakers. Adding a DAC or phono is not going to mask the issues between Luxman and R3S. I have been down this road where I kept on upgrading upstream components instead of addressing the real problem. Having heard Luxman Integrated, I do not believe Luxman is a right match for your R3S or Tannoy’s.
Where to insert tubes while running a Luxman SS integrated
I've recently upgraded my integrated amplifier from a Cambridge CXA81 to a Luxman l-507uxii. The Cambridge is definitely not bad for its price, but the Luxman is a different animal and is making me want to upgrade everything else in my system. Which brings me to my point of discussion: I'd like to insert tubes somewhere in my system to get some additional warmth and a more holographic soundstage. Would adding a tube preamp and running the Luxman as only a power amp be best to do this, or would it be better to get a tube dac for my digital, and separately, a tube phono stage for my vinyl?