Popular Post Jud Posted July 8, 2019 Popular Post Share Posted July 8, 2019 I notice it and the Red feature a "bit-perfect digital volume control," which I guess is the same as the "bit-perfect variable output" mentioned above. Would be interested to learn more. Wonder where the slow roll-off filter starts to cut, and whether it cuts lower, and that is what is supposed to dramatically improve sound from low quality sources; or whether it starts to cut at a fairly high point, and allows some aliasing/imaging that might sound subjectively better but measure less well. The Computer Audiophile and tmtomh 2 One never knows, do one? - Fats Waller The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein Computer, Audirvana -> optical Ethernet to Fitlet3 -> Fibbr Alpha Optical USB -> iFi NEO iDSD DAC -> Apollon Audio 1ET400A Mini (Purifi based) -> Vandersteen 3A Signature. Link to comment
Jud Posted July 8, 2019 Share Posted July 8, 2019 2 hours ago, mansr said: It's meaningless. Digital volume control by necessity means bit are altered. Bit-perfect means bits are not altered. Can't have it both ways. Which is why I said I'd be interested to learn more. Since the AQ description doesn't say anything, how (without giving away IP) does the volume control actually operate? We (Chris) may not get a comprehensible answer, but it didn't cost anything to ask, so... One never knows, do one? - Fats Waller The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein Computer, Audirvana -> optical Ethernet to Fitlet3 -> Fibbr Alpha Optical USB -> iFi NEO iDSD DAC -> Apollon Audio 1ET400A Mini (Purifi based) -> Vandersteen 3A Signature. Link to comment
Jud Posted July 8, 2019 Share Posted July 8, 2019 21 minutes ago, mansr said: The Dragonfly Red uses the built-in volume control in the ESS DAC. I assume it does a simple multiplication, since that's all a volume control needs to do. If you want to know for sure what the Cobalt does, send me one and I'll find out. I won't have one to send. 🙂 Since the descriptions are identical, I assume it works just like the Red. One never knows, do one? - Fats Waller The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein Computer, Audirvana -> optical Ethernet to Fitlet3 -> Fibbr Alpha Optical USB -> iFi NEO iDSD DAC -> Apollon Audio 1ET400A Mini (Purifi based) -> Vandersteen 3A Signature. Link to comment
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