JPS62191294U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing an embodiment of a speaker device according to this invention, FIG. 2 is a schematic plan view of the same embodiment, FIG. 3 is a circuit diagram of the same embodiment, and FIG. The figure is a graph showing the relationship between speaker distance and volume. In the figure, 1a and 1b are speakers, 2a and 2b are arms, 3a and 3b are variable resistors, 4a and 4b are equalizers, and 5a and 5b are output amplifiers.

Claims (1)

[Claims for Utility Model Registration] (1) A speaker device for stereo reproduction having a pair of left and right speakers, an arm rotatably supporting each of the speakers so that the distance between them can be adjusted as desired; rotation angle detection means for detecting the rotation angle of each of the speakers via the arm; and a sound pressure level that is heard at a central position between the speakers in response to a signal from the rotation angle detection means, so that the sound pressure level is approximately constant. A speaker device comprising: output control means for controlling audio output of each of the speakers. (2) The speaker device according to claim (1), wherein the rotation angle detection means comprises a rotary variable resistor. (3) In claim (1) of the utility model registration, the output control means comprises an equalizer that controls the amplification degree of the output amplifier of each of the speakers based on the rotation angle signal from the rotation angle detection means. Features speaker equipment. (4) The speaker device according to claim (1), wherein the arm is made of a flexible pipe.