Abstract: A speaker device includes: a speaker unit configured to output a sound; a speaker box covering at least a part of a back surface of the speaker unit; and a duct comprising a first opening that is open within the speaker box, and a second opening opposite the first opening, the duct communicating together an interior and exterior of the speaker box via the first and second openings, wherein the duct further comprises a third opening disposed in a midway location between the first and second openings.

Abstract: A speaker device includes: a speaker unit configured to output a sound; a speaker box covering at least a part of a back surface of the speaker unit; and a duct comprising a first opening that is open within the speaker box, and a second opening opposite the first opening, the duct communicating together an interior and exterior of the speaker box via the first and second openings, wherein the duct further comprises a third opening disposed in a midway location between the first and second openings.

Abstract: A speaker system that can form an optimal sound field in a wide range, that easily promotes a reduction in size (slimming down), and that hardly causes a deterioration in sound quality even when used as a television set is provided. A speaker system (100) includes two speakers (120) having sound output surfaces opposing to one another. The speaker system (100) includes a diffuser (110) between the two speakers (120). The diffuser (110) reflects sound emitted by the two speakers (120) inward of a specific half space.

Abstract: The present invention relates to metal object-coating method, which method comprises coating a primer composition (I) prepared by adding an inorganic anti-corrosive agent to at least one binder component selected from the group consisting of a binder component (A) containing an epoxy resin and ant least one of amino resin and phenol resin, a binder component (B) containing a polyester resin, epoxy resin and phenol resin, and a binder component (C) containing ?-olefin•?,?-ethylenically unsaturated carboxylic acid copolymer resin onto the surface of a metal object coating substrate to form a primer coating film layer, followed by coating a topcoat coating composition consisting of a thermoplastic resin based coating composition (II) onto the primer coating film layer to form a topcoat coating film layer consisting of a thermoplastic resin coating film layer; and the primer composition used in the method.