I would definitely recommend separating the streamer and DAC function. Choose well and they will sound great and make future upgrades much easier.
Two rules of thumb that I find useful. Only true if you do your homework and identify the best at the price range that are compatible both with your system and sonic values.
Overall system components are best roughly around the same value. So for instance Streamer = DAC = Preamp = amp. If integrated amp divide by two. My current system has my amp and streamer 20% more than my DAC and preamp… 20% is not much… see below.
Upgrades are successful when 2x or more in cost. So say $2K —> $4K. Less than this you can be left with a sideways move and disappointment.
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