The comment was surely about the analog preamp. A good preamp should indeed reproduce the input signal as closely as possible and good preamps should sound nearly identical, as they reproduce what they are fed. It s very hard to hear the difference between one excellent neutral preamp and another. No surprises there.
DAC's do sound different as they process the signal although differences are also very small but many people can hear these slight differences when listening critically and switching back and forth on the same track.
DAC's do sound different as they process the signal although differences are also very small but many people can hear these slight differences when listening critically and switching back and forth on the same track.