Well if you enjoy this type of conversation and topic, scroll a bit or try to use ctrl + f put there "blame" or "blaming". Apparently You come into the middle of this conflict debate for what? to explain me what the other guy intention was to say?
No, I have read all the comments. I was trying to be diplomatic. When I say I don't understand, I take it that English isn't your first language. No criticism, or offence intended, you are doing better at communicating than I could in a language other than my own. However, although most of the words you use are English, their structure does not for coherent sentences, resulting in your intended point quite literally being lost in translation.
To paraphrase what has happened. It appears your amplifier has a poor internal design due to outputs passing near magnetic fields. Others have suggested:
*The amp has good reputation for sound quality
*You, yourself have reported you like the sound.
*The website from which you copied the image makes no mention of the perceived issue.
*This isn't the best forum for such a technical question, a better forum was recommended.
*You raised concerns without actually formulating them into a question.
I accept this is a replacement amp as the original was faulty, however, none of your comments have been worded in such a way to make this germane to your original point.
In conclusion; based on the information provided and a quick Google of your amplifier, you have a well regarded, but not class leading product within its price. There is no suggestion of a design flaw. You like the sound it makes, therefore you should just enjoy it. If you stop enjoying it trade it in for something that is to your liking.