A couple of things. Don't listen to people that have biases against MQA, their judgment is flawed to start with. Same as asking a pure analog guy how digital sounds, they will never tell you that digital sounds good. Good MQA IMO is better than vinyl and good MQA is better than cd SQ. Most people who hate MQA never actually listened to it or refused to buy the appropriate equipment to do it right. You also have look at the libraries of both and see who carries the music you listen to. Qobuz didn't have all the music I like whereas Tidal does.
I had the same preamp as you do, the C47 and the DAC is low fi. I never used it because I had an external dac that was far superior, which is typical when you combine a DAC or phono preamp in a preamp or integrated. The only reason I had the C47 was because I had a vinyl setup that cost 3x more than your setup and when I got my digital setup correctly, I sold all my analog gear and the C47 because now I go directly from my dac to the amp, no need for a preamp.
Never use USB into the dac. its flawed and even when buying all the gimmick pieces of equipment to try to make it better, its still bad.
You need software that can read/stream data at its best. That doesn't include amazon/iTunes, they are both low fi sounding. I also had a dedicated streaming box a few years ago that sounded better than my audirvana/pure music/Mac mini setup. But when Roon came out and the better Audirvana software, I got rid of the streaming box. I also got a much better external dac that has ethernet and I2S inputs so now my server is located in a different room than my dedicated audio room. What is an external streamer server? A computer with a proprietary Linux OS, and a locked system. Ask the vendor how you are going to backup the internal drive that stores your music.
Get a new M1 Mac mini with an internal SSD for the OS and the music app with 2 external disks for your ripped music and backup, then use Roon or Audirvana and you have your server, 1 that is much faster than any of the other dedicated streamers out there.
If you go cheap on the dac, then your digital sq is compromised. For $2500, use your existing pc/Mac at home with at least 16G of ram and SSD for the OS, get Roon or Audirvana, then spend $2500 for a used ps audio ds jr dac that has ethernet built in and you will have better sound than your analog setup. With this setup, then you can determine for yourself which is better for you: Qobuz or Tidal and MQA support is built into the DS jr. If you want better sound quality, then jump up to the DS sr.