07-Apr-2020, 18:00
Mindful of some of the posts above, it has already been noted that the Devialet Expert has been tested by a number of other entities.
Looking at the measurements by Paul Miller (post #44) it is interesting that the S/N ratio measurements he made are fairly similar to those in the ASR review, for the analogue input at least.
That is, Signal-to-Noise Ratio (A-weighted, 6th-Octave mode) into 8ohm = 93dB for the analogue input. A key point to note is that per Miller's various reports the digital input measures much better at 118dB. OK - there is nothing here that matches the 130dB that Devialet claim, but then again, there are no details as to the basis of Devialet's figure. I have to say that 130dB does look a little optimistic, but that said, 118dB is excellent. In terms of ASR's SINAD scale, the Expert tested would have looked much better if the digital input used, up there with the very best. Even via the analogue input the results are pretty decent, by any normal standards.
In summary, if you want to know how well a Devialet Expert measures, I think most of what you might want to know is already covered in the tests my Paul Miller and others. For example, the Miller measurements show THD figures for a whole range of frequency ranges and power levels, many of these are in line with Devialet's quoted figures, some are not.
The point is, if you want to know how a D170 measures, there is plenty of published data available already, and most of it looks pretty decent.
None of this solves the low watts / high frequency test tone conundrum, or the curious phase shift plot in the ASR review. I think these issues could do with a response from Devialet. Time will tell …..
As for ASR conspiracy theories, I think ASR tend to review whatever they can get their hands on. A lot of the tests are made on items loaned for testing by other forum members, which seams to be the case with the D200. I am sure if they were given a brand new Pro, they would happily test it. OK - They enjoy finding a bad measurement and having as much fun as possible out of it, but I see no foul play here.
Looking at the measurements by Paul Miller (post #44) it is interesting that the S/N ratio measurements he made are fairly similar to those in the ASR review, for the analogue input at least.
That is, Signal-to-Noise Ratio (A-weighted, 6th-Octave mode) into 8ohm = 93dB for the analogue input. A key point to note is that per Miller's various reports the digital input measures much better at 118dB. OK - there is nothing here that matches the 130dB that Devialet claim, but then again, there are no details as to the basis of Devialet's figure. I have to say that 130dB does look a little optimistic, but that said, 118dB is excellent. In terms of ASR's SINAD scale, the Expert tested would have looked much better if the digital input used, up there with the very best. Even via the analogue input the results are pretty decent, by any normal standards.
In summary, if you want to know how well a Devialet Expert measures, I think most of what you might want to know is already covered in the tests my Paul Miller and others. For example, the Miller measurements show THD figures for a whole range of frequency ranges and power levels, many of these are in line with Devialet's quoted figures, some are not.
The point is, if you want to know how a D170 measures, there is plenty of published data available already, and most of it looks pretty decent.
None of this solves the low watts / high frequency test tone conundrum, or the curious phase shift plot in the ASR review. I think these issues could do with a response from Devialet. Time will tell …..
As for ASR conspiracy theories, I think ASR tend to review whatever they can get their hands on. A lot of the tests are made on items loaned for testing by other forum members, which seams to be the case with the D200. I am sure if they were given a brand new Pro, they would happily test it. OK - They enjoy finding a bad measurement and having as much fun as possible out of it, but I see no foul play here.
1000 Pro - KEF Blade - iFi Zen Stream - Mutec REF10 - MC3+USB - Pro-Ject Signature 12
