I’m using a SMSL SD-9 streamer and a Musician Pegasus DAC. The pair are awesome performers, and the streamer connects to the internet wired or wirelessly and provides access to Tidal and Qobuz. The Streamer supports Optiical, Coaxial, AES, Bluetooth, USB, I2S outputs to the DAC. The streamer is only 399, and the DAC only 1199 and they sound great together. I would get a separate DAC, as that will have the greatest influence on sound quality.