Yes DAC is very often the best performer in your whole audio system and are aviable for not much money at all.
And the relatively cheap SOTA DAC’s you can buy is very close the limits of physics. So even better regulation of some voltage to nano volt performance will just hit the limits of physics.
Just the thermal noise in a passive resistor due to quantum physics set some limits.
And the board layout itself is an art form , to get anywhere you must probably do multilayer circuit board with smd components very close to each other ?
I would do this for learning and fun .
And you must get some measurement equipment otherwise you don’t know what’s your doing.
And the relatively cheap SOTA DAC’s you can buy is very close the limits of physics. So even better regulation of some voltage to nano volt performance will just hit the limits of physics.
Just the thermal noise in a passive resistor due to quantum physics set some limits.
And the board layout itself is an art form , to get anywhere you must probably do multilayer circuit board with smd components very close to each other ?
I would do this for learning and fun .
And you must get some measurement equipment otherwise you don’t know what’s your doing.