Nobody should say headphones are better or worse than speakers
Average non modified headphones right out of the box and average audio systems uncontrolled and right out of the box are generally a TASTE matter...
But mechanical, electrical and acoustical controls of a speakers system are not a matter of taste....This is the ONLY way to give to your audio speakers/room system superiority over most headphones if not all...I dont have soix experience about that... But based on my experiments this was the case...
For sure when someone mix it is useful to listen to sound under a microscope sometimes headphones or monitor studio box...
I am not an engineer who work , i am in my audio room amd i want music not perfect sounds...
Have you tried listening to your speakers without the bricks on top? Does it reduce the sound quality?
For sure the concrete slabs are not sold with the speakers.... 😊
The slabs and bricks are there to damp the speakers but not only that to compress the springs i use to controls vibrations/resonance problem... The 2 sets of 4 springs boxes under and on top of each speaker are asymmetrically compressed...One set by the load of concrete and speaker weight and the other set on top of the speaker by the weight of the concrete slabs only... the difference in compressing force between the 2 sets of 4 boxes springs work well to decrease resonant too powerful mode in the speaker...
It is my own idea about how to use cheap springs to achieve the near same results than costly designed springs...Cost: peanuts... Results: amazingly good....
Thanks for your kind appreciation and posts....
My best to you from the heart.....