I have a TIDAL account with a Scott Nixon dac so no hi-rez necessary. Do you think switching over to Amazon is worthwhile? Yes I have a Prime account.
I don’t know which Scott Nixon DAC you have, but if it is only decodes / outputs CD quality I don’t see why not. How you value the other factors related to streaming, I can’t say.
From the Scott Nixon site, for his newer DACs:
"The usb models are not hi-rez, but I really think most listeners don’t need it yet (or ever). For hi-rez I recommend the s/pdif models and a pro-interface or usb/spdif dongle that will output 24/96. The Chibi and TD2.2 will decode 24/96 and output 16/96. There are usb hi-rez models in the works, but will be 4 to 5 times the cost of these offerings."