| 摘要 |
The present invention provides an apparatus for sound comprising a sound source generating unit for generating an electric signal from a sound source, N (N>=2) amplifiers which are connected in series so that the output part of one amplifier is connected with the input part of the other amplifier and one of them is connected with the sound source generating unit, and 2N speakers which are respectively connected with left and right output parts of each of the N amplifiers. According to one aspect of the invention there is formed a multiple stereo imaging including a first stereo imaging, a first mono imaging, a second mono imaging and a second stereo imaging generated by the first mono imaging and the second mono imaging.
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