"Obviously, the Sabre DAC should push a better sound, correct? WAY better? "
Not knowing much about either DAC in play here, why should the Sabre DAC necessarily be better?
1) there is a lot of variability in how DACs sound.
2) the determination which DC sounds better can be largely subjective depending on listener preferences or expectations. That's why no one size fits all.
Its also possible that your digital connection from Arcam player to Decco is introducing more jitter than internal coupling to DAC in the Arcam. There could be many reasons why this could happen. Not all digital connections between two pieces are created equal! If it were determined hands down that ESS Sabre DAC is not performing as well as it should somehow, then this is probably the most likely reason.
Not knowing much about either DAC in play here, why should the Sabre DAC necessarily be better?
1) there is a lot of variability in how DACs sound.
2) the determination which DC sounds better can be largely subjective depending on listener preferences or expectations. That's why no one size fits all.
Its also possible that your digital connection from Arcam player to Decco is introducing more jitter than internal coupling to DAC in the Arcam. There could be many reasons why this could happen. Not all digital connections between two pieces are created equal! If it were determined hands down that ESS Sabre DAC is not performing as well as it should somehow, then this is probably the most likely reason.