And I still have too units that are often used for measurements purposes. They work great so far, and are 100% transparent (in digital domain) with just about every test I run.
Now that Amir beated me by a few days/hours (and trust me, I wasn't that happy when seeing it on ASR... but I'm the only one to blame), I think you would agree that I won't be that much in a hurry to release mine. I mean, for visibility/trending purposes, better wait another week. But if you are...
Please specify that the first part of results are in the digital domain. The second, in the analog domain. That's a massive difference. ;)
Not quite. Down to a certain extent, yes. Below 0.8Vrms, the SINAD is decreasing.
Most of these work with a DSP (non bypassable). As such, their analog input signal will always be converted again to digital through their ADC (and again to analog to feed the drivers). So, SQ wise, you would have no benefit using the analog outputs of the Ultra. Just saying. Modern...
If you want the highest SINAD : WPP set at 2Vrms, then the Purifi at 27.5dB Gain.
In all cases, always check the output volume in WiiM app before turning on the power amp.
If any digital signal would be corrupted over Wi-Fi, what you will hear is quite audible artefacts, drops, glitches and so on. I mean, immediately noticeable. It simply cannot be related to anything subtle regarding soundstage, timbres or any "musical" enjoyment. ;)
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