A controversial takes on low cost speakers with a lesson...

That was the longest 18 minutes and 56 seconds of my life.

I'll stand by my original comment, I don't find anything of value in this video-I don't think I'm alone in that conclusion. If that makes me stupid so be it. I'll also say that the concept of acoustics is well known, I suspect, to those who frequent this forum, even if we don't post about it over and over. As I also said, if the OP learned something from this video, good for him, I'm sure this YouTuber has other material he might find beneficial. I was unimpressed-I thought I might be entitled to that opinion and I thought posting the video might be an invitation to comment-obviously that was an incorrect assumption. 

I'll take some responsibility for this little detour. I should have known better than to engage. As @abnerjack pointed out, in a very kind way, these interactions end up with this sort of pointless name calling with unusual frequency. Should have just ignored the post. 

No wonder young people don't like audiophiles, just read through the posts on this.

I haven't even watched the video and can tell you are all so removed from the people just starting in the hobby. 

If you don't find anything of value in the video, then you're not the target audience. So don’t complain its not always about you, just move on.

If there is misleading information feel free to educate in a respectful way don’t bash the person for not knowing.

The acoustics principles are not only ignored but the way we can use them concretely are very complex to master in all their interaction...

For example how can we act on the acoustical material content of a room , with his peculiar geometry,topology, to create a balance ratio between the listener envelopment and the apparent width of the sound source ? How can we use the reverberation time to do this? Why are we in the obligation to investigate how do this instead of upgrading without end ?

A good gear piece design cannot replace acoustics controls, this is why. 

 I have my own answer to this appropriate for my room and ears. There is many other answers possible... Acoustics of small room is very complex matter, only ignorant can claim as above that everybody know this...Buying acoustics panels is not enough in most room case  by the way ....

If those bashing the youtuber of my video and myself because we are faulty to  suggest a reflection road about a complex problem, if those  can understand even the way to pose the problem and know already  the answer, they can answer for the benefit of all or go on insulting me and others giving sarcasms instead of thinking...

By the way laoman come in any thread i answer with insults even few times in my private mail since  more than one year... His history contribution of attacks  is easy to see if you go back in his posts history...

Andrew Robinson is the worst combination, arrogant, lazy and ignorant. He doesn't even care to learn the basics to be useful in any way.