The sound quality from DACs - is it all the same?

Can the width, depth and height of soundstage be measured accurately in spite we know the SS is created/affected by the delay of sound arriving at ears? How can one measure imaging, separation of intruments, the quality of bass such as speed and weight of bass, etc.?

I measured these acoustic factors rigorously with a finely tunable and precisely located grid of Helmholtz resonators and diffusers, their placement changed the pressure zones signature of the room, all these devices are precisely mechanically adjustable by hearing experiments like a piano tuner tune progressively a piano in a room and for a room...More than only measuring these acoustic factors i can change them at will in my room...

Please show me/us an example of these measures and how they are related to  the soundstage, imaging, instrument separation, ... discussed here.  Absolutely fascinating if these measures exist.

A measure is not only a number interpreted on a dial , like reading a sound level for example..

It can be a specific measures related to  the dimensions of a device , like the specific measures associated to an Helmholtz resonators for example and the way it affect the S.Q. for OUR EARS...(perimeter/volume/lenght ratioof the device and his neck)

There is no electronic measure of imaging and soundstage, but there is ACOUSTIC/PSYCHO-ACOUSTIC MEASURES linked to the experience of imaging and soundstage in acoustic...Like the precise relation between the timing of the wavefronts coming from each speaker and their sound level intensity FOR EACH EAR...I use these OBJECTIVE facts to create imaging and soundstage at will...

These measures are used in the headphone technology like the Smyth realizer for example... I use mechanical devices myself instead of electronical one  after  the Helmholtz method, who is the father of acoustic/psycho-acoustic...

Please show me/us an example of these measures and how they are related to the soundstage, imaging, instrument separation, ... discussed here. Absolutely fascinating if these measures exist.

“I've been talking to my cousin brother”

Nice. 

"Self proclaimed expert audiophile"  - Wonderfully oxymoronic description.

Isn’t your “cousin brother” also your cousin? Maybe your family tree differs?