Hi
@AlxTMX
Unfortunately, you are not the only one who has experienced this defect.
I also had, and have, it from the first moment with the Ultra connected via USB to my Topping D70ProSabre DAC.
If I use ARC per channel, from L channel the sweep tone starts in the correct way, although it ends in a couple of seconds of “modulated noise,” as you called it. I called it white noise. When switching to the R channel, no sweep tone, only modulated noise or white noise.
Of course, the equalized curve of the R channel is completely meaningless. As you say "huge overcompensated in bass region and depressed in higs".
In my case, given the position of the speaker (rear bass reflex) which is placed in an angle I should have achieved exactly the opposite. Cut bass and increased treble. I tried everything. Rebooting the Ultra; reinstalling the App; I changed from IOS to Android, but the defect is still there.
On the other hand, if I use the ARC per channel with the DAC connected to the Ultra with a COAX cable, everything works at his best. The problem is only with the USB.
I opened two tickets through WHA attaching the log, but I got no response from
@WiiM Support or
@WiiM Team .
I thought I was the only one with that problem, but now I see that I am not alone. I hope that
@WiiM Support or
@WiiM Team can solve this annoying problem.
