Denon AVR-X2200W + Wharfedale Diamond 10: Noise issues destroying speakers

See my latest video here:    • Denon AVR-X2200W worst warranty service ev...  

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Here is the video of my setup showing the noise problems that have been damaging my speakers.
The devices have already been twice to HORN service in Poland and the answer was always that the amplituner is fine.
I had already 3 blown speakers and as seen in the video, the next ones will also be.

If you want to skip to the video, skip to 0:51

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UPDATE: As of 2019, the amplifier completely died out of nowhere, apparently the HDMI card burned and together with it, it burned my gaming graphics card and motherboard (components literally blew off near the HDMI connector on the graphic card), fortunately my Chromecast and TV survived. I no longer have image although the amplifier still powers on and the screen works, but it freezes as soon as I try to access any OSD menus. Sadly it was out of warranty so I was left with a brick and burned gaming computer. The only way to repurpose it is to cut the audio bus going to the amplifier section and plug some 2.5mm jack in there, and we have amplified sound (injected directly to the amplifier section) thats the only reason why I didn't threw it to the trash yet.
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UPDATE: As of 2021 I decided to buy an AVR-X6700H, its been almost a year and no issues so far. I can only assume that I had a defective AVR-X2200W and the warranty service refused to replace the unit saying that everything was fine, forcing this issue to be dragged over the period of the warranty until it died beyond warranty repair. It now sits on my attic covered in dust.
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