* If the data are right *, SNR must be at max power and not at 1 watt -> Hypex NC250MP is the best option to listen to good/very good recordings with high DR at home.
I doubt your listening room has a SNR of > 100 dB.
* If the data are right *, SNR must be at max power and not at 1 watt -> Hypex NC250MP is the best option to listen to good/very good recordings with high DR at home.
The manuals are available, but if you're using extensions like NoScript or uMatrix you'll need to allow a few things before you get to them. IIRC it needs script and cookie from google.com then clicking on the terms acceptance before they show up.Audiophonics-PA-S250NC-stereo-NC250MP-specs
https://www.audiophonics.fr/en/powe...s-d-amplifier-ncore-2x250w-4-ohm-p-13545.html
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Audiophonics-PA-S500NC-stereo-NC500MP-specs
https://www.audiophonics.fr/en/powe...s-d-amplifier-2x500w-4-ohm-ncore-p-13344.html
View attachment 32144
* If the data are right *, SNR must be at max power and not at 1 watt -> Hypex NC250MP is the best option to listen to good/very good recordings with high DR at home.
With modern commercial music, badly recorded and DR < 10 dB, I suppose it will be quite difficult to appreciate differences between the two modules beyond the power.
Can someone verify the data? The PDF manuals with all specs are not available on the Hypex website.
https://www.hypex.nl/oem-audio-amplifiers/
The 500MP and 502MP match except for the SNR, which is 124dB on the datasheet.
SNR-A, 8 Ohms / 1 watt at 0.1% -> about 97 dBA, that it is very high!.
Really? You know why. Usually we need less of 10 watts continuous at home. 5 watts or less.
They specify the following conditions:Since you do not specify it, it must be at 4 Ohms, 500 watts at 1%.
I'm not familiar with AES17 so someone else will have to explain what that means for the reference level.
I found that one, saw that the reference level was defined in terms of digital full scale (section 9.3 for SNR, following back to 3.3 for full scale definition), and assumed I was missing something and needed an explanation from someone familiar with its application to equipment without a digital input.
I found that one, saw that the reference level was defined in terms of digital full scale (section 9.3 for SNR, following back to 3.3 for full scale definition), and assumed I was missing something and needed an explanation from someone familiar with its application to equipment without a digital input.
So why are Hypex using it for analog gear? What's the equivalent standard for power amps that they should be using instead?AES 17 is for measuring digital gear (even their analog outputs). In that situation "full scale" has a pretty clear definition.
So why are Hypex using it for analog gear? What's the equivalent standard for power amps that they should be using instead?
Suppose it is not summer and the window is closed. And at night, blinds down. I guess I should have 25 dBA. I want SS amplifier wiht SNR-A near 90 dBA. I need 65 dB.
I usually listen to very good vinyl rip 24/96 or 24/192 WAV/FLAC recordings. Vinyls have 56-65 dB of dynamic range. The vast majority are rips without noise, clicks and other discomforts that are usually attributed to vinyl, but I rarely listen to them with my loved speakers. They are usually very good editions or pressed -> 65 dB of dynamic range.
Finally, 25 dBA + 65 dBA = 90 dBA.
I understand the relevance - it's one of the tests "substantially identical to those used when testing analog equipment" as mentioned in the AES17 abstract. I had hoped there would be a standard for identifying that "suitable point" given the number of different approaches to "maximum power" currently in use, or at least a generally accepted method that those familiar with it would be able to point to. I also know from testing in other fields that the standards you may expect to exist often don't, or have multiple competing forms. If that's the case here then please say so.It is quite relevant for analog gear too, as long as a suitable point of "maximum power" is selected to represent "full scale".