Where would I need absorbers vs diffusers (Surround speakers on the back are bipolar) - Read first comment for more details please ! : r/Acoustics
Combination of Absorbers and Diffusers - An Experimental Study in a Classroom - Acoustic Bulletin
Studio Spectrum Acoustic Absorber - Bluetone Acoustics
Sound Diffuser VS Absorber – Acoustic Fields
Article: Setting the Soundstage| How to treat your home theater like a real theater | Acoustics First Acoustical Panels & Soundproofing Materials to Control Sound and Eliminate Noise™