I purchased a Lumin D2 about 2 years ago and liked Lumin so much that I upgraded to the Lumin T2 last month. I highly recommend the T2 as a starting point based on several factors: Improved soundstage and musicality over the D2, fantastic app that allows easy access to Tidal and Qobuz, knowledgeable support direct from the US importer/distributor (in case your dealer gets stumped). I use the Lumin daily and couldn't be happier with the versatility offered.
Good Luck!