I believe that every listener wants to enjoy wonderful music at home. However, the very important bass part of music can only be expressed by very complicated systems or even giant speakers. Bose's other patent, Acoustimass speaker technology, enables the subwoofer of the product not only to reproduce the powerful sound, but also to get rid of the huge and complicated design, and can be placed at will without destroying the decoration of the room. The slim design can be completely integrated into the home layout. The biggest structural feature of this technology is that the bass unit is independently installed in the sound box, and the low-frequency energy released by the bass unit is filtered by the patented multi-stress cavity, which makes the released bass more pure and completely directionless.