Davewavaolcom, I went to the Jon Risch website and saw the acoustic room treatments there. Pretty cool. I went right down to Lowe's and bought the materials for knock-offs of the Argent Room Lenses. The glue is setting on them right now. I made 6 of them. Since I already has some small pieces of MDF and glue laying around, my total cost for the 6 room lenses was $29.68. That's about $5 each. Hard to beat, since the real Argent Room Lenses cost about $2300 for 6. May not get to use them tonight, because the glue may not be hardened enough till tomorrow. Thanks for the tip!