TabCam
Active Member
- Joined
- Feb 16, 2020
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I see a big difference between the test/graphs of this test and the original review of the chord Hugo 2 dac.
This was the multitone for the original review
(odd thing, the image is called "Chord Hugo 2 Toslink Measurements Multitone Response Portable DAC Headphone Amplifier.png" in the original review)
In my eyes this is quite an improvement, both cleaner and lower. The same can be said for the jitter test:
Much improved also and much closer to the original toslink
The same is visible in the SINAD dashboard
The performance over usb was impeded compared to toslink in the original review but now it looks the 5-9 dB improved:
I could have inserted the AudioQuest Pearl SINAD dashboard but I do not want to cherry pick graphs and say the AudioQuest Pearl improves the performance of the Chord Hugo. However, it still seems there is a difference in the graph as the blue seems quite a bit lower which does not translate into the numbers.
Either the original USB cable was malfunctioning or another measurement error was made in the original review. In any case I think @amirm should correct the original review of the Chord Hugo 2, and maybe change his recommendation for the Chord Hugo 2 also?
At the same time I see differences between graphs that I would like to see investigate further.
Last food for thought; how is it possible that this was not seen/mentioned earlier? We say we understand the effect it has on the readers but is the first impression not the most important? Should we then not be very critical at measurements and double check before leaping to conclusions?
This was the multitone for the original review
(odd thing, the image is called "Chord Hugo 2 Toslink Measurements Multitone Response Portable DAC Headphone Amplifier.png" in the original review)
In my eyes this is quite an improvement, both cleaner and lower. The same can be said for the jitter test:
Much improved also and much closer to the original toslink
The same is visible in the SINAD dashboard
The performance over usb was impeded compared to toslink in the original review but now it looks the 5-9 dB improved:
I could have inserted the AudioQuest Pearl SINAD dashboard but I do not want to cherry pick graphs and say the AudioQuest Pearl improves the performance of the Chord Hugo. However, it still seems there is a difference in the graph as the blue seems quite a bit lower which does not translate into the numbers.
Either the original USB cable was malfunctioning or another measurement error was made in the original review. In any case I think @amirm should correct the original review of the Chord Hugo 2, and maybe change his recommendation for the Chord Hugo 2 also?
At the same time I see differences between graphs that I would like to see investigate further.
Last food for thought; how is it possible that this was not seen/mentioned earlier? We say we understand the effect it has on the readers but is the first impression not the most important? Should we then not be very critical at measurements and double check before leaping to conclusions?
Attachments
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Chord Hugo 2 Toslink Measurements Multitone Response Portable DAC Headphone Amplifier.png32.5 KB · Views: 62
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Chord Hugo 2 Audioquest Pearl USB Cable Multitone Measurements.png40.6 KB · Views: 57
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Chord Hugo 2 Toslink Measurements Jitter Portable DAC Headphone Amplifier.png28.2 KB · Views: 58
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Chord Hugo 2 Audioquest Pearl USB Cable jitter Measurements.png26.3 KB · Views: 61
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Chord Hugo 2 USB Measurements Portable DAC Headphone Amplifier (1).png39.9 KB · Views: 62
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Chord Hugo 2 Audioquest Pearl USB Cable Measurements.png42.3 KB · Views: 64
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Chord Hugo 2 USB Measurements Portable DAC Headphone Amplifier.png39.9 KB · Views: 56
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Chord Hugo 2 Generic USB Cable Measurements.png40.4 KB · Views: 63