If it's purely an engineering challenge why bother designing yet another DAC?

Distortion percentage would likely be higher in lower power useage than at rated specification, and if you're comparing a dominantly 2nd and 3rd order harmonic distortion, with the other amp having dominantly higher order harmonics from 5th and up. Then, yes. One would sound sweet and the other would make you use the stereo less.
 
Yes, because of the distorsions spectral distribution. Basic + trivial.

//

:up:

Measurement in audio is meaningless if you do not understand the relationship between measurement and how it sound.

It is difficult to express the sound quality in measurement, specially only one measurement like THD.

Example:
1. THD at audio frequency is below 0.01% and S/N at 1Vrms signal = 80dB
2. THD at audio frequency is below 0.1% and S/N at 1Vrms signal = 100dB

What will you choose without listening? 1 or 2?
If you choose use blind audition, it will same as your choice without listening?
 
Hah! That would depend on the distortion characteristics and personal preference of each and every individual in the listening test. Regardless of measurement, the worst amplifier might actually win.

Agree.

Objectionist understand how to measure but sometime do not understand the relationship between measurement and how it sound.
Subjectionist only care of the sound difference but sometime do not understand how to measure.

The worst is objectionist think they are scientist 😀
 
bozoc, I'm just curious, are you in audio business or affiliated with one?
Even if I was, that info is useless to you and the other. And calling out in this case is used to discredit me and hush me up in such a clumsy way.
Reminds me of ceratin crackpot communities that called out scientists that did blood pressure medication research scientists for conflict of interest without even looking at the papers.

A simple question for you: If I would claim I can hear the grass growing in my back yard, would you challenge my claim, or take it as yet another data point in subjectively investigating the hearing abilities of humans?

No need to be dense here.

Such a super human hearing ability can be numerically quantified. Then in exact sciences, there are mathematically rigurous methods to eliminate alleged gross errors from a set of data. Such a data point will likely be eliminated; engineers sometimes take the shortcut and, based on experience and general engineering principles discard such data without much of a rigurous analysis.

Arguing for the level of reductionism you propose here is silly and is no substitute for that provided by peer reviewed replicated research.
Evidence not conjectures. And the evidence for your claims is severely lacking! Every time I hear similar reductionist argument like this I cringe.

So when a certain member claims, without any evidence, that a 7805 regulator sounds better than a modern low noise high bandwidth LDO, in a certain circuit, me, as an engineer, don't need any further data analysis to reject the claim and call it BS.
I don't know if there would be a difference. If I were to guess if there would be any audible differences it would depend on implementation and application.

If you (or anybody else) feel an urge to more or less Socratically discuss, dissect, analyze, etc... such claims then myself I can only conclude you have way too much time in your hands (or not, and then you may have an agenda and/or an axe to grind).For any competent scientist/engineer life is too short to take this path, we have to deliver and lip service is not a good deliverable. Except in the High End Audio business, of course.
Why accuse me of things that you engage yourself in with me?
 
That's odd. Screenshot of my search tells otherwise.

If "cheap" and "dacs" are the magic words, it is apparently as I've said before, it helps if you post the search terms that led to the posts in which you've given the citations for the experimental results you've mentioned.

I'm sure you know that the screeshot excerpt, that you've posted above, doesn't provide any contradictionary evidence itsself, so the "tells otherwise" isn't warranted.