The Importance of Room Interaction

[JoeE SP9]

Your description sound a lot like slap echo occuring in your room at higher volumes.

[Wireworm5]

Nooo,it's not slap echo effect, I've been in rooms like that.
On 'Comfortably Numb' its the way he plays the solo that creates this siren effect, and its at a higher freq. At a lower volume the sound isn't bouncing off the walls enough to notice.I imagine the people who were at the concert noticed this effect as well which is what makes this solo so awesome.
On other songs with high frequency notes, I would discribe the effect as halographic. But on other songs at high volume the sound is very lively.
Most people that have listened to my system can't handle music this loud. And stereos that I've heard other than mine will be start to distort and sound harsh when cranked.
What I am trying to say is assuming you have a good equipment and good room acoustics. Acheiving good sound wave interaction in the room is vital. For me this happens around 95 decibels.

[Florian]

This is why i have ALWAYS bought first reflection point absorbers ans bass traps and now spend close to 6K on a real digital room correction system and modify my room.

Acoustics are just as important as speakers.