[snopawer]

amp 7 or 8? any difference?

 

[Whitigir]

Amp7 is single ended and Amp8 is balanced . The dx200 also 220 are both true balanced from DAC implementations. So using Amp8 has the benefits from balanced to balanced. But different amp modules has different signatures. I recommend you to listen to it and decide. I also think that it depends on how your stuffs have been wired, for example, if you have most IEMS or headphones with balanced 4.4mm connector, then it is a no brainer to go with amp 8 instead

For further questions, considering posting in main thread