DBT's are irrelevant, IMO. Everyone who intimately knows their system will most likely be able to detect a change (or lack of one) with a new component inserted. But to sit there and try to differentiate between cables, amps, rubber feet, whatever, is, in my view, an exercise in futility. Why? To catalogue their sonic signatures? Leave that to the bat-eared solons at the audio mags with their bottomless box of adjectives.
The fun of the hobby is to experiment and build something that your satisfied with, within your means. Getting caught up with the impossible preposition that differences must (must!) exist in and among every component - add into that electrical power quality, room treatments and tweaks of all sorts - just puts you on a fast track to an audio obsessive disorder that interferes with the ability to enjoy music. If that's the bottom line, and if DBT's are your way of getting there, who's to say otherwise.
The fun of the hobby is to experiment and build something that your satisfied with, within your means. Getting caught up with the impossible preposition that differences must (must!) exist in and among every component - add into that electrical power quality, room treatments and tweaks of all sorts - just puts you on a fast track to an audio obsessive disorder that interferes with the ability to enjoy music. If that's the bottom line, and if DBT's are your way of getting there, who's to say otherwise.