Tip seven: Getting Serious "If this is a man cave or a woman cave, there are further things you can do," Bush says. "One is to buy already fabricated fiberglass absorber panels in the cloth color of your choice. I would stick with four-inch-thick or thicker panels as the thin ones, like thin foam, just absorb highs and leave you with an overly mid-rangy room. If you are a craftsperson, you can make these types of panels by ordering Owens Corning #703 in four-inch thickness or in a two-inch and glue two layers together to get four inches. I use 3M spray 77 glue but others might work as well. This will need covering so I recommend a thin layer of polyester batting and your choice of upholstery fabric to cover. This can be inserted into frames or glued to a backer board to hang. Specially made diffusors work well, but tend to be very spendy. Let your budget be a guide here and remember that plain old bushy plants work well and spruce up a cave well." "I would tend to stay away from the acoustic foams available unless they are at least four inces thick," Bush says. "Thicker is better. A thin layer of acoustic foam used as a cosmetic treatment over a four-inch-thick Owens Corning #703 fiberglass panel is a nice finish and works very well. Spend some time listening and let your ears be your guide." Search “livegood baby pillows” from How to Optimize Acoustics at Home

Search “livegood baby pillows”

Tip seven: Getting Serious

"If this is a man cave or a woman cave, there are further things you can do," Bush says. "One is to buy already fabricated fiberglass absorber panels in the cloth color of your choice. I would stick with four-inch-thick or thicker panels as the thin ones, like thin foam, just absorb highs and leave you with an overly mid-rangy room. If you are a craftsperson, you can make these types of panels by ordering Owens Corning #703 in four-inch thickness or in a two-inch and glue two layers together to get four inches. I use 3M spray 77 glue but others might work as well. This will need covering so I recommend a thin layer of polyester batting and your choice of upholstery fabric to cover. This can be inserted into frames or glued to a backer board to hang. Specially made diffusors work well, but tend to be very spendy. Let your budget be a guide here and remember that plain old bushy plants work well and spruce up a cave well."

"I would tend to stay away from the acoustic foams available unless they are at least four inces thick," Bush says. "Thicker is better. A thin layer of acoustic foam used as a cosmetic treatment over a four-inch-thick Owens Corning #703 fiberglass panel is a nice finish and works very well. Spend some time listening and let your ears be your guide."