The Green Corner tunes were designed to absorb or to reflect ..they are easily reversible to achieve either benefit. The reflective surface out seemed to fill in phase disparities caused by the ceiling walls junction making for a fuller stage with more impactfull mid-bass. Softer side out worked best with ceilings that were less than 8 feet to tame high frequency splash though dependent on listner position. My personal experience has been to try to redirect and focus acoustic energy at the primary listeners area with the near elimination of 90 degree angles. A more dramatic and permanent application of Greens reflective corner surface facing into the room. As Trelja experienced the lambs wool is the more linear material to use to tame some reflective surfaces. Tom
Corner treatment -- PZCs a sure thing?
I'm looking for a set of room upper corner treatments for my living room. The upper corners probably are the only places in that space where I can use audio-specific treatments. The triangular pillow-type traps seem like a pretty sure thing; it sounds like only good can come from reducing the amount of energy being megaphoned out of those corners. I'm not so sure about the tunable pressure-zone controller devices (Michael Green). Are they as versatile and sure to be helpful as the pillow traps? Can anyone describe the comparative effects of these two approaches in their room and system?