Abstract: An object of the present invention is to provide a speaker system in which a woofer and a group of tweeters are substantially coaxially arranged, and sound waves emitted from the woofer and sound waves emitted from the tweeter are less likely to interfere with each other in at least one direction, and whose sound pressure frequency characteristics easily stabilize. A speaker system according to the present invention includes a woofer and three or more tweeters, and the tweeters are arranged in front of the woofer in a circular-arc formation.

Abstract: An object of the present invention is to provide a speaker system in which a woofer and a group of tweeters are substantially coaxially arranged, and sound waves emitted from the woofer and sound waves emitted from the tweeter are less likely to interfere with each other in at least one direction, and whose sound pressure frequency characteristics easily stabilize. A speaker system 4 according to the present invention includes a woofer 2 and three or more tweeters 3, and the tweeters 3 are arranged in front of the woofer 2 in a circular-arc formation.

Abstract: An electroacoustic transducer of a horn loudspeaker emits sound, which is supplied through a sound conduit pipe to a horn and propagated out of the horn through a mouth of the horn. The sound conduit pipe is coupled to the horn via a rectangular opening in the upper one of the upper and lower walls forming the horn, to thereby provide a linear sound source for the loudspeaker. The location where the sound conduit pipe is coupled to the horn and/or the tilt angle of the sound conduit pipe with respect to the horn may be varied to control the sound radiation characteristic of the loudspeaker.

Abstract: A throat device for interconnecting at least two drive units and a horn is provided. The throat device comprises a substantially straight body member having one end to be coupled with the horn, and at least two curved branch members coupled with the other end of said body member such that no phase interference occurs in a high frequency sound range.

Abstract: An audio device includes a playback device, such as a tape or CD player, and a radio. The audio device can be set to interrupt the playback device, upon receiving a signal, to output a special broadcast, such as a traffic information broadcast. When the playback device is interrupted during normal playback, playback is paused. Therefore, when the audio device switches back to the playback, the recording continues from the point at which playback was interrupted. When the playback device is interrupted during a special function, such as rewind or fast-foreword, the playback device is permitted to continue the special function to its completion while the broadcast is output.

Abstract: A speaker horn including a first and a second pair of side walls. The first pair of side walls has a first section and a second section between first and second ends, and the second pair of side walls has a third section and a fourth section between third and fourth ends. The first pair of side walls has, in a first plane including the central axis of the horn and perpendicular to the side walls of the first pair, a shape defined by the following equation:y=a+b.multidot.e.sup.cxwhere a, b and c are constants and have values different in said first and said second sections, and the second pair of side walls is, in a second plane including the central axis of the horn and perpendicular to the side walls of the second pair, linear in the third section and an arc in the fourth section.

Abstract: A reinforcing member includes a reinforcing resin layer which is elastic in its semi-hardened or unhardened state before the reinforcing member is applied to an object to be reinforced and which is rigid in its hardened state; an expandable member centered along the reinforcing resin layer; the expandable member being narrower than the reinforcing resin layer; the expandable member being elastic at least before the reinforcing member is applied to the object; the expandable member being expandable to form a bead-like projection before the reinforcing resin layer hardens; the reinforcing resin layer having its edge portions extending beyond the expandable member, the underside of the edge portions thereof being adapted to adhere to the object.

Abstract: A panel for an automotive vehicle and the method of making same. A main reinforcing member is bonded to an outer panel, the reinforcing member being made of a hardened thermosetting material. An auxiliary reinforcing member is attached to and covers the entire inner side of the main reinforcing member. A core element of foamed resin is encapsulated between the outer panel and the main reinforcing member and causes the latter to bulge in the inward direction to form a rib-like projection to strengthen the panel.