I recognized the importance of bass pressure alleviation, and wanted to utilize my ceiling space to install bass traps into the ceiling of my listening space in my apartment. Down below to the L is the front wall which is treated with P-17 Quadratic diffusors, and down below to the R is where the listening sofa is located. Thankfully, my ceiling is 10ft. high, which allows installation of these large and extremely heavy modules - closest to the L are five diaphragmatic bass absorbers (16" deep x 27" square) tuned to deeply absorb between 30-50Hz; next are 5 pcs. of diaphragmatic bass absorbers (14" deep x 27" square), tuned to broadly (but less deeply) absorb frequencies between 50-200Hz; then a row of five Prime-13 quadratic diffusors which horizontally scatter frequencies between 285 Hz. and 3,450 Hz. These are installed in a lattice of steel frames (visible through the dark voids), criss-crossing and anchored to the structural columns and beams of my apartment building to provide stability and solidity. These were all built to custom specifications and sizes at great cost and required herculean effort to install. Please PM me if you'd like to find out more information.
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