Forget about the Theta. It is way too old to be competitive those days. Not to mention poor jitter rejection. Same for Bel Canto.
I would get sth more modern, like the new PS Audio NuWave DAC for example. You can get one used for ~$600 on AgoN or $800 brand new.
I would get sth more modern, like the new PS Audio NuWave DAC for example. You can get one used for ~$600 on AgoN or $800 brand new.