Acoustic amplification speaker amp; cabinet for removal possible speaker device

摘要

(57) Abstract The front (10f) and the speaker device which possesses the rear (10r) with (A) the acoustic amplifier which is used (C), the 1st hollow part (X) and the frame which has 2nd hollow part (i) it has (E), the frame (E) the speaker device (A) demarcates the inclined field (N) which is accepted when angle has been attached, to the transmission direction (P) of sound from of the front (10f) of the speaker device the sound which is transmitted to opposite direction, in order the speaker device (A) to receive from the rear (10r) directly, the 1st hollow part (X) demarcates the entrance (24),The 1st hollow part (X) and 2nd hollow part (i), the sound which the 1st hollow part (X) receives, to 2nd hollow part (i), direction has the wall surface (U, B and L) in order to make convert facing toward the exit which is demarcated furthermore by the 2nd hollow part. The serial megaphone effect which is redoubled is achieved.