"Im gonna build with my frend bass traps for my studio\r\n\r\nI like to know what kinda fabric to use ( not to expensive) i read polyester does a good job ? Like to know your opinion \r\n\r\nAnd mine bass trapp gonna be 50 cm witdh\r\n25.5 cm depth \r\n\r\n2 m long \r\nIs this good like to know\r\n your opinion to \r\n\r\n( using rockwool)\r\n\r\nIs this good i know you need them bigger but mine room is not big enough for that \ud83d\ude2a\r\n\r\nPs( Just a rookie who wanna learn )"