steadyshot
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Thanks Achim!
My WiiM Pro Plus 2nd sample test
- Thread starter onlyoneme
- Start date
given the spdif output measurements...
we can invite wiim in future revision versions to take care of these outputs...
qualitative buffering efforts (and a slightly higher level... we avoid being below 0.5vpp)
....
steadyshot
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I don’t understand what you mean. Can you elaborate ?
steadyshot
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If you mean the eye pattern look for instance the ifi neo stream. It is below 0.5v as the wiim pro is.
Post in thread 'WiiM Pro Plus - Review & Measurements (Streamer)' https://audiosciencereview.com/foru...view-measurements-streamer.47020/post-1769863
a part of onlyoneme's discussions-measures on the digital outputs ignored here...rather important...with significant impacts... (but also the fact that there are far too many shortcuts on what the presumed quality of a digital source just observed at the output... of a DAC etc... huge technical bias)
a part of onlyoneme's discussions-measures on the digital outputs ignored here...rather important...with significant impacts... (but also the fact that there are far too many shortcuts on what the presumed quality of a digital source just observed at the output... of a DAC etc... huge technical bias)
VintageFlanker
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Care to elaborate?
cc_rider
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A huge thank you to @onlyoneme and @VintageFlanker for their excellent service in testing the WiiM devices, and a relevant article on testing from Archimago:
archimago.blogspot.com
MUSINGS: On the duplicity of hi-fi audio anti-measurers? The John DeVore example.
A blog for audiophiles about more objective topics. Measurements of audio gear. Reasonable, realistic, no snakeoil assessment of sound, and equipment.
archimago.blogspot.com
He gots lot of headwind in his blog. I like him very much, but he is as less an instance as JDV is.A huge thank you to @onlyoneme and @VintageFlanker for their excellent service in testing the WiiM devices, and a relevant article on testing from Archimago:
MUSINGS: On the duplicity of hi-fi audio anti-measurers? The John DeVore example.
A blog for audiophiles about more objective topics. Measurements of audio gear. Reasonable, realistic, no snakeoil assessment of sound, and equipment.
ThxA huge thank you to @onlyoneme and @VintageFlanker for their excellent service in testing the WiiM devices, and a relevant article on testing from Archimago:
MUSINGS: On the duplicity of hi-fi audio anti-measurers? The John DeVore example.
A blog for audiophiles about more objective topics. Measurements of audio gear. Reasonable, realistic, no snakeoil assessment of sound, and equipment.
And also for introducing my favorite blogger's website. I have great respect for him for such sentences:
"Just because some companies advertised based on a narrow set of measurements to catch the consumer's attention doesn't mean nobody measured products more broadly or understood the performance more holistically."
brjoon1021
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I have a pcb revision 2 wiim pro plus. Is it a pariah compared to the later / fixed versions ?
The fix implemented after mine was for what in particular ?
The fix implemented after mine was for what in particular ?
Brantome
Moderator
No, I wouldn’t say it’s a pariah by any means
Post in thread 'My WiiM Pro Plus 2nd sample test'
https://forum.wiimhome.com/threads/my-wiim-pro-plus-2nd-sample-test.1580/post-24526
Very impressed by your measurements. Have you compared the bit perfect digital output via coax and toslink using the stock PSU? You indicated that you used a very high quality PS for your measurements. Just curious if the power supply would make a difference for the digital board.
Depends on what you mean exactly. In terms of being bit perfect for digital data sent to the receiver - both digital outputs remain bit perfect for the stock PSU.
When comparing low frequency components of the analog carrier over the coaxial output, for the WiiM Pro:
stock:
linear regulated battery:
When comparing low frequency components of the analog carrier over the coaxial output, for the WiiM Pro:
stock:
linear regulated battery:
What your measurements suggest/mean is that if one is using the Wiim Pro or Plus as a digital streamer only, a high quality linear supply should make no difference vs the stock SMPS. If so, I should stop trying to improve my Wiim Pro Plus with a better power supply! Thanks!
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