Nie, sprawdziłem wiadomości teraz. Tak to wygląda. Pozwolę sobie go zacytować:
"I do not recommend any absorber except behind head. Put "furniture' in the room. Sofa, table, shelf, etc. Only behind speakers diffuser, but my type speakers only, where sound fires backwards for just this purpose! Now, if you must sit where couch/sofa is up against back wall, yes, absorbers behind your head as thick as possible! 4-6" (15cm) best."