I had the TDAI-3400 for about a year and used only the on board DAC for streaming (Innuous Zenith III) and was pretty happy with it until I tried the Mytek Manhattan 2 DAC. It's a lot more expensive as a stand alone DAC but the improvements in sound were profound.
My point is that you might want to explore some stand alone DACs to get the best sound from this amp. The Schitt Yggy is a high bang for the buck DAC as one example. Mytek Brooklyn is another one to consider. Buy one from a seller that allows a trial and the risk is low.
A stand alone music server will also sound much better than streaming directly into the Lyngdorf.
My point is that you might want to explore some stand alone DACs to get the best sound from this amp. The Schitt Yggy is a high bang for the buck DAC as one example. Mytek Brooklyn is another one to consider. Buy one from a seller that allows a trial and the risk is low.
A stand alone music server will also sound much better than streaming directly into the Lyngdorf.