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Old 17th November 2019, 10:03 AM   #21
maty tinman is offline maty tinman  Spain
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Quote:
Originally Posted by invaderzim View Post
Lets put it up against some real $500-$1000 competition like the nad c316bee, Marantz PM5005, Denon PMA-600NE and a Yamaha R-N803 and see how it compares. Maybe it will trounce them but we won't know if reviewers keep skipping way past that level to be impressed that it can run at all with $2,500-$5,000 amps.
You need to see the graphs of Denon PMA-800NE. I do not trust the THD graph of the Polish site.

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[Polish] Denon PMA-800NE - Wzmacniacze stereo | Testy w Audio.com.pl

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With some mods/tweaks and... we have a good base to work with. For example, add a RF/EMI filter. Schaffner 9244B

How to clean the DC at mains. And ripple too.

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or discrete with much more attenuation.

EMI/RFI/Common Mode Filter assembled and tested PCB | ATL Audio Ltd.

https://www.audiocircle.com/index.ph...490#msg1751490

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Last edited by maty tinman; 17th November 2019 at 10:13 AM.
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Old 17th November 2019, 01:04 PM   #22
Mark Tillotson is offline Mark Tillotson
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Quote:
Originally Posted by maty tinman View Post
Very beautiful harmonic profile, dominant H2 and... monotonously decreasing.

You know none of those harmonics are audible to anyone? Well noone whose ever had their hearing measured Perhaps you are special? Find out with a double-blind listening test.
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Old 17th November 2019, 02:12 PM   #23
maty tinman is offline maty tinman  Spain
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If > 90 dB this harmonic profile is audible. At 60 dB without any doubt, and much more with complex recordings -> so much harmonics clouded the sound.

At 80 or 90 dB it will depend on each person and their system. And recording quality, very important. If you listen to modern commercial music, so badly recorded, you do no need to spend a lot of money in the audio system, and it will not matter if they are at 60 dB or more than 90 dB.

That is the great current problem, the lousy use of the best current technology, with the creation of very low quality musical products. I do not talk about musical tastes but about the recordings quality.
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Last edited by maty tinman; 17th November 2019 at 02:20 PM.
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