Just from the perspective of flexibility and adaptability I would opt for the outboard DAC.
That way I can...
- use the IC's I believe provide the best sonic performance
- use the best Power cables I believe is best suited to the component
- change to another DAC as the technology improves
Inboard DACs may be constrained by "design decisions" that are based more on implementation costs than sonic performance - even in some high end gear unfortunately.
- Also, having the DAC share the power supply with a power hungry amp stage may not be the best solution, sonically or operationally
Regards...
That way I can...
- use the IC's I believe provide the best sonic performance
- use the best Power cables I believe is best suited to the component
- change to another DAC as the technology improves
Inboard DACs may be constrained by "design decisions" that are based more on implementation costs than sonic performance - even in some high end gear unfortunately.
- Also, having the DAC share the power supply with a power hungry amp stage may not be the best solution, sonically or operationally
Regards...