To reproduce sounds with high fidelity at the time of use and to attain the protection of a speaker at the time of non-use by respectively providing a recessed part on the surface of walls, 1st speaker on the bottom of the recessed part, and 2nd speaker so as to face the 1st speaker.

A recessed part 2 is provided on a wall surface 1 of a room to fit an embedded speaker system, and a 1st enclosure 6 is fitted so as to be fitted into this recessed part 2. The enclosure 6 is formed into the shape of a box by a baffle plate 4, side plate 7 and rear plate 8. A 1st speaker 3 is fitted onto the baffle plate 4. A 2nd enclosure 10 is sized so as to close the opening part of the recessed part 2 and formed into the shape of a box by a baffle plate 11, side plate 12 and rear plate 13. A 2nd speaker 9 is fitted onto the baffle plate 11 and arranged so as to face the 1st speaker 3. A hinge 14 provided between the wall surface 1 and the 2nd enclosure 10 freely rotates the 2nd speaker 9.