I owned the Akurate DSM and had it upgraded to Katalyst. When I picked it up I listened to it against the Selekt and the Klimax, just to see if the Selekt might be a good next step. To my ears, no. The Akurate was clearly the better sounding unit. I've never tried its phono stage. While the Selekt might provide more options (phono stage, amp modules, etc.), if your question is just about how it sounds, I'd recommend the Akurate.
Another thought: for the price of the Akurate, you might be able to snag a used Klimax in excellent condition (with our without Katalyst), use it for now, and down the road upgrade the dac in it to Organik. I'm using one now, and it is exceptional.