Much better. Is it first batch retail version?
Much better. Is it first batch retail version?
Much better. Is it first batch retail version?
You silly silly guys, the party has only just started. More manufacturers finally started seeing people want high performing devices, AMP developments are moving at lighting pace, AKM just released the 4499 which is due to likely see amazing renditions from other DAC makers, THX modules seem to now slowly be trickling into other devices. Cool new streamers, and things like that.
You're leaving at the worst time ;P
Linearity is the same in the new revision, correct?
Linearity is the same in the new revision, correct?
How do linearity issues like this affect sound quality?Nothing changed
It's a non-issue...How do linearity issues like this affect sound quality?
Hard to say, in reality it is unlikely there is an audible difference. The D90 is the current state of the art flagship with AK4499 DAC, if you buy it you're buying it to own the latest and best. If that is worth +40% that is up to you. Imo, it's arguably better to get a D70 used or new, and wait for the inevitable response from ESS Sabre to the AK4499, or whatever AKM will come up next in the coming years (AK45-- series?), and just enjoy the D70.Hi all,
I have just read the whole conversation but I am not deep in these terms and graphs, so still not clear.... Can you please advise if there would be an audible difference between the D70 and D90 if I use it only as a DAC in my chain? The D90 is +40% the price of a D70...
Thx!
(Tannoy Revolution XT8F + Electrocompaniet ECI-4)
So if it's a non-issue (meaning not audible), then this measure is more to test signal tolerances and design expertise, but not a useful measure for the music listener?It's a non-issue...
But isn't the DX7Pro in an identical chassis, so I assume this issue is unique to AK4499 build requirements? I can't imagine that Topping would purposely abandon its design principles learned during the development of the DX7Pro if it could be implemented here whenever applicable.This is happens when there are only 2 clocks instead of 3 like Dx7Pro, when that clocks are too far away of AK4499 and when the rectifier diodes are just near the ckocks and spread out all of the high frequency garbage. Anyway, a mediocre design in a too small chassis.
This makes no sense.This is happens when there are only 2 clocks instead of 3 like Dx7Pro, when that clocks are too far away of AK4499 and when the rectifier diodes are just near the ckocks and spread out all of the high frequency garbage. Anyway, a mediocre design in a too small chassis.
I do indeed.I believe Amir uses his own custom filter in linearity measurements.
Can I ask you a simple question, why you guys like to express distortions in SINAD but not in THD+N? At levels less than -60db the difference is negligible.I guarantee it in the SINAD Over Time measurement about 50 minutes. The value fluctuates within 1db(similar to Topping D50s))
The way AP computes SINAD is exactly the same as THD+N. Express THD+N in dB and then change the sign and you get SINAD. It is just math and not a different measurement. It is nicer because bigger means better.Can I ask you a simple question, why you guys like to express distortions in SINAD but not in THD+N? At levels less than -60db the difference is negligible.
Yes. It is a measurement that shows how perfect the linearity is but you're not going to hear the difference between 18.5 bits and 20 bits linearity.. not when SINAD and multitone are just about state of the art.So if it's a non-issue (meaning not audible), then this measure is more to test signal tolerances and design expertise, but not a useful measure for the music listener?
EDIT: I found this incredibly informative ASR post about DAC linearity measurement and its realistic effects on audibility. After reading it, I was able to put these linearity measurements into perspective. https://www.audiosciencereview.com/forum/index.php?threads/how-important-is-dac-linearity.7878/ . Arguably, for a typical loudspeaker system, it appears that linearity problems occurring below -110 dB is not audible, but could always be improved for an additional cost in both time (to research the matter) and money (extra labor means extra $$). I would assume that when the DX9Pro is released, all these linearity issues would be resolved, but now the you are paying for engineering perfection without real world improvement to your music listening experience - really pride of ownership of a well engineered product. Am I on the right track here?
Hard to say, in reality it is unlikely there is an audible difference. The D90 is the current state of the art flagship with AK4499 DAC, if you buy it you're buying it to own the latest and best. If that is worth +40% that is up to you. Imo, it's arguably better to get a D70 used or new, and wait for the inevitable response from ESS Sabre to the AK4499, or whatever AKM will come up next in the coming years (AK45-- series?), and just enjoy the D70.
There will always be new stuff that will be that tiny bit better. One can't upgrade two times a year lol. I mean I hope no one here does this