Are Schiit DACS any good?
This DAC can be super crisp and natural when paired with a variety of headphones. For the $99 price point, there really are no better options that I can think of.
Is the Schiit stack worth it?
The Schiit stack is the best stack currently in the market in relation to the price. There can be cheaper components that you can purchase, but they are not a stack, in the sense of this uniform perpendicular landscape. Likewise, there are superior audio stacks, but they cost many times more.
Is it worth buying a DAC amp?
In most cases, the answer is no.
Unless your audio is suffering from jittering or hissing, a DAC isn’t going to do much for you. It’s generally better to invest the extra money you’d otherwise spend on a DAC into getting better headphones.