qround.jpegI love this idea for the imagination of it. It’s Peter Belt’s technique but it also overlaps with the science of Biogeometry. Use 1/4” quarter round (aka “dowelling” in the UK), which is used for moulding around floors. Cut it in sections of 3 inches. Fasten it into the corners of your room, near the ceiling, using Blu-Tak adhesive putty. It will eliminate that offensive right angle, right quick, and do wonderful things to your sound. You can be forgiven for thinking this must be operating on conventional sound diffraction principles, following the pattern of, say, Harmonix tuning dots. That’s a predictable hypothesis but again, the wrong one. Try installing them in another room, the sound will still get better in your listening room.