If you aren't storing any of your music on the Innuos then you won't need it anymore (or move any music you have stored on it to your NAS), as Roon Core could be run on a much less expensive computer, either whatever computer you already have or you could buy something dedicated like an Intel NUC.
The Lumin X1 sounds magnificent, especially after the Leedh volume algorithm upgrade if you are bypassing any preamp. Roon's direct control of the Lumin volume might make bypassing a preamp relatively easy and convenient for you.
Of course there are lots of other Roon Ready DACs out there that sound excellent but different. Besides DCS, you might also consider MSB. I also recommend Devialet's Expert Pro series, but that might not be the direction you want to go in as they are all-in-one units. The Trinnov Amethyst is another good Roon Ready network streaming DAC that also adds the Trinnov Optimizer.
The issue will be ensuring that the sound character matches what you're looking for, so auditioning will be important. Lumin, DCS, MSB, Devialet, and Trinnov all sound different from each other to some degree.
The Lumin X1 sounds magnificent, especially after the Leedh volume algorithm upgrade if you are bypassing any preamp. Roon's direct control of the Lumin volume might make bypassing a preamp relatively easy and convenient for you.
Of course there are lots of other Roon Ready DACs out there that sound excellent but different. Besides DCS, you might also consider MSB. I also recommend Devialet's Expert Pro series, but that might not be the direction you want to go in as they are all-in-one units. The Trinnov Amethyst is another good Roon Ready network streaming DAC that also adds the Trinnov Optimizer.
The issue will be ensuring that the sound character matches what you're looking for, so auditioning will be important. Lumin, DCS, MSB, Devialet, and Trinnov all sound different from each other to some degree.