dCS is horrendously overpriced and represents some of the worst value is audio equipment. There are many DACs that are built even better and sound as good or better than the dCS like the Bricasti Design M1.
The ATC speaker you are interested in retails for 24,500.00. It uses analog active crossovers between its amps forgoing the huge advantage doing this in the digital domain. There are things you can do in the digital realm such as subwoofer management, room control and EQ that are impossible to do in the analog realm without adding distortion. I also hate the idea of amps closed off in loudspeakers were they have no ventilation and get the crap vibrated out of them if there is a woofer in the box. I have seen connection work harden and break. I would get the passive version of the speaker and triamp it using a DEQX Pre 8 and you can add subwoofers seamlessly down the line if you care. You get a preamp, a digital processor, 8 channel DAC and high res streamer all in one Australian Box. Then you can get whatever amp you like best in each position. One more thing about DACs, they followed the same path op amps did. Over a period of 40 years the DAC chips now handily match or even improve on the function of discreet units. Using them allows the manufacturer to save serious money and be able to offer 8 channel DACs at a reasonable price. The Pre 8 is not cheap at $15,000, but if it had 4 discreet DACs (8 channels) it would cost $55,000. For people who like the idea of an active loudspeaker, and I am one of them, the Pre 8 is a game changer.