06-05-2021, 04:06 PM
The RPi 3B+ is certainly capable of great sound with the right DAC. I suspect that it might be showing up the deficiences in your DDA-100, which were previously concealed by the Windows setup. Lower-priced DACs have improved vastly in recent years, so I would recommend having a listen to what the Pi can do with a good budget Topping or SMSL DAC if you can.