Acoustic design of Mr. He's private audio-visual room in Qingyuan

Mr. He's audio-visual room in Qingyuan Villa
Villa address: Qingyuan
Owner Mr. He: Private entrepreneur (hardware processing)
Indoor area: height x width x length = 2.86X4.04X4.85M, area 19.59 square meters
Function positioning: 5.1-channel private theater, karaoke room
Acoustic materials: FSB professional soundproof door, TL low-frequency trap, Tianlai secondary residue diffusion board, etc.