5 coups for living room home theater stereo system soundproofing 2


3.    The sound insulation of the floor

A high-density glass wool damping cushion is laid on the structural floor and then 40mm thick concrete floor. The weighted impact sound pressure level can be less than 60dB. Some suggest that the ground be paved with river stone and sand, then grind 3cm of cement on it, and then lay the floor. Of course, if the wooden floor is nailed into a cavity, it will have a good absorption capacity below 100 Hz, and the low frequency effect of the sound will be very good. And laying pebbles under the floor can just fill the gap that easily causes standing waves and co-seismic, and even the drawbacks of the hollow wooden floor can be overcome.


woofer speaker for home

Woofer speaker for home

4.     The sound insulation of the ceiling

Many people want to make a ceiling when decorating, but the ceiling material is relatively thin, especially the three-ply board is more likely to cause resonance. Nowadays, the general person's treatment method is to use the light gypsum to make the uneven surface of the tortuous plate on the top of the ceiling, so that it is not easy to cause reflection, and does not reduce the actual height of the room, and is more economical. When the floor height exceeds 3 meters, it can be constructed by evenly drilled lightweight gypsum board (a special perforated sound-absorbing sheet) and gypsum inlay with uneven surface, which is both beautiful and sound-proof. Some friends also made a flat ceiling through the keel, ultra-fine glass, and splint, and also became a thin-plate resonant sound-absorbing device to meet the sound-building effect. However, the author thinks that, in general, the ceiling is also best for both sound absorption and sound insulation. And for better sound insulation, it is best to use a professional sound insulation material to make a special soundproof ceiling.


stereo system with subwoofer

Stereo system with subwoofer

5.    The sound insulation of sound source that is subwoofer

Padding a granite plate with a thickness of 4cm or more to subwoofer. Because the mass inertia of the granite plate can absorb part of the vibration energy of the subwoofer, a flexible buffer layer such as rubber/carpet is placed between the granite plate and the floor. This will prevent the subwoofer from directly coupling to the floor, and effectively isolate the bass transmission to the downstairs, which will greatly reduce the impact on the residents downstairs. At the same time, the granite plate on the subwoofer pad helps to improve the sound quality.

Keywords:woofer speaker for home, stereo system with subwoofer