I read this different and perhaps I have come to the wrong idea. But here it goes. I am thinking that perhaps the speakers are sitting on the carpet without spikes etc. Anytime I have just looked a set of speakers down they sound dead. I have had numerous things u set speakers cement sidewalk blocks under Maggie's, two inch think hardwood under box speakers spikes down to the floor and feet between the speakers and wood blocks. I have had steel leveling plates with hardwood blocks between the plates and the speakers. When I set a pair of speakers with down firing ports in my home theater setup. They sounded dead. I went out to my garage and picked up a couple of pieces of plywood set the speakers on the plywood much better life again. Lol that reminds me I need to make a proper pair of hardwood plates to set those on and the beats will sing more beautifully than before.
As I was thinking that he maybe talking about suck out because the speakers are not decoupled from the carpet. Just a thought.
Regards Tom