The reason why the famous Tube Traps have a reflective side is to prevent having too dead a room. Ditto for the Room Tune Corner Tunes and simliar products. It’s easy to get carried away and to convince yourself that more is better. Before you know it it’s too late. 😩 A reflection free zone could simply mean attenuating early reflections, which everyone agrees is a good idea.
Over damped Room?
I recently moved into a smaller listening room (10' by 13') and had floor stander that had to go from old house...I ended up with some atc scm19 v2 and thought I was done with room treatments...lately I have been turning system up...way up to get some grunt/dynamics going...having 200 watts... today I removed the rear bass traps and man my speakers can breath again...
I was all set to get new subwoofer and cables...couldn't for the life of me figure what was missing...
Micro details,air more low end...Definitely worth trying.