Theres a way to get digital from every macbook, they vary, but in the new ones its as simple as a DAC with USB, if your DAC doesn't have USB I would bet my right testicle you can get a device that can muster up a digital output from somewhere, as another way to digitally output you can use a USB-C to HDMI adaptor, then get your digital signal from that, as its all included in HDMI. sure there's probably other ways to if you get creative but you get the idea...