Abstract: A digital speaker system that effectively uses the characteristic of a signal processing circuit is constructed. A digital speaker system 1 having plural speakers has a signal processing circuit 10 for outputting plural right-sound digital signals and plural left-sound digital signals, and at least one of the plural speakers is operated to function as a monaural sound speaker 2 to which any one or plural right-sound digital signals output from the signal processing circuit 10 and any left-sound digital signals whose number corresponds to the number of the signals are input to output monaural sounds.

Abstract: There is provided a voice coil speaker containing a bobbin having multilayer voice coils formed thereon in which the bobbin and a circuit board are properly arranged. In a voice coil speaker equipped with a bobbin having multilayer voice coils formed thereon and a diaphragm connected to the bobbin, the bobbin and the diaphragm being provided in a speaker body, an audio signal processing circuit board for processing an audio signal is disposed ahead of the diaphragm, and plural output terminals for outputting to the multilayer voice coils are arranged in the peripheral direction of the audio signal processing circuit board.

Abstract: A digital speaker system that effectively uses the characteristic of a signal processing circuit is constructed. A digital speaker system 1 having plural speakers has a signal processing circuit 10 for outputting plural right-sound digital signals and plural left-sound digital signals, and at least one of the plural speakers is operated to function as a monaural sound speaker 2 to which any one or plural right-sound digital signals output from the signal processing circuit 10 and any left-sound digital signals whose number corresponds to the number of the signals are input to output monaural sounds.

Abstract: A digital speaker system that can perform both enhancement of reproduction capability and simplification of construction is provided with a construction using plural speaker units for one audio channel. The digital speaker system has a first signal processor 32A for generating plural driving digital signals SS1 to SS6 from one digital audio signal SB1 into which an input digital audio signal SA is branched, and a second signal processor 32B for generating a single driving digital signal SS7 from the other digital audio signal SB2 into which the input digital audio signal SA is branched, and a speaker unit for one audio channel is constructed by a main speaker unit 22A having a voice coil bobbin 23A with plural voice coils supplied with the plural driving digital signals SS1 to SS6, and a sub speaker unit 22B having a voice coil bobbin 23B with a single voice coil supplied with the single driving digital signal.

Abstract: There is provided a voice coil speaker containing a bobbin having multilayer voice coils formed thereon in which the bobbin and a circuit board are properly arranged. In a voice coil speaker equipped with a bobbin having multilayer voice coils formed thereon and a diaphragm connected to the bobbin, the bobbin and the diaphragm being provided in a speaker body, an audio signal processing circuit board for processing an audio signal is disposed ahead of the diaphragm, and plural output terminals for outputting to the multilayer voice coils are arranged in the peripheral direction of the audio signal processing circuit board.

Abstract: In a seat, a bass acoustic vibration transmission section and a treble acoustic vibration transmission section are arranged distinctively with respect to a seat occupant, such that those two acoustic vibration transmission sections are disposed independently of each other, thereby achieving both of the following two effects: an acoustic performance worthy of acoustic seat; and a seating comfort essentially required as a seat. A vibration conduction unit is provided, which comprises a combination of: one bass speaker; a support plate to which that one bass speaker is secured; and a network cushion member of three-dimensional structure arranged on an anterior surface of the support plate.

Abstract: In a seat, a bass acoustic vibration transmission section and a treble acoustic vibration transmission section are arranged distinctively with respect to a seat occupant, such that those two acoustic vibration transmission sections are disposed independently of each other, thereby achieving both of the following two effects: an acoustic performance worthy of acoustic seat; and a seating comfort essentially required as a seat. A vibration conduction unit is provided, which comprises a combination of: one bass speaker; a support plate to which that one bass speaker is secured; and a network cushion member of three-dimensional structure arranged on an anterior surface of the support plate.