I just recalled the third degree polynomial from the article. Not sure but it might be the case that THD takes a mere weighted sum of gain, the second and third degree harmonics. More refined parameter would measure the distortion of the gain, second and third order harmonics separately.
Competitive class D amp suggestions
I have been Class D fun since a few years ago when i bought my first class D amp. I like the concept, in general, and all the attractive features of this class of amplifiers. I tried 4 different ones, currently i stayed with one of them that i consider to be the best among all four amps. I do enjoy and like it. At the same time, my 5 watts SET amplifier (with more than 100 times higher distortion according to the specs) gives more natural and (surprisingly) notably cleaner sound (THD of the class D amp is 0.001). The soundstage of the class D amp is not so bad but that of the tube one is still better.
I remain attracted by class D amps though.
Any fresh suggestions on reasonably priced class D amps (i mean excluding non-reasonably priced class D amps, e.g., Merrill amplifiers)?
Any comments on non-reasonably priced class D amps are also welcome (so far i was not able to audition many class D amps and am curious if there are some which could really compete with Class A).
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Yeah, and SINAD. This is probably not the right forum to discuss issues of specific weightings as it is quite a mathmatically beguiling issue. This, I think, is understood. I look at a threshold metrics. Should they be met, then a visual of what else is presented is worthy of further examination - this is perhaps three or four other parameters, on a good day. And this is becoming reasonably well understood by many inquisitive folk, with thanks to a small number (one?) of .educational resources that did not exist until recent years, Plus valued contributions by exceptionally knowledgeable people.
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@clio09 ”Too much out there at a fraction of the cost that is a better value in my opinion.”
Yes you pointed out you are a value shopper and it is not a good value. Some people are going for the the best sound they can get. This is their market. But for them it is completely worth the cost. Hence, fr them it is a good value. Values are personal. |
@ghdprentice, maybe I should have stated my point a different way. I know too many people who when doing comparisons think along the lines of, "Well it cost $100,000 so it must be better...". To your point, I do go for value, but I go for the highest quality of sound I can attain as well. In addition to moderately priced components I have some very expensive components in my system. All components in my system were chosen for their value, regardless of their price, and because they contribute to the overall enjoyment of my system. |
- 223 posts total