LOUDSPEAKER CABINET

Abstract: The loudspeaker cabinet has two loudspeakers for reproducing the right and left channels of a stereo signal in at least the bass frequency range. The axes of the loudspeakers cross each other and their distance is such that the magnetic fields just do not touch.

Description: Loudspeaker cabinet The invention relates to a loudspeaker box,equip with two for the reproduction of at least the low-frequen region intended loudspeakers, of which the centre lines a crossing. 5 Such loudspeaker boxes have been commonly known i various designs. A drawback of the known loudspeaker boxe is their comparative large sizes. The German Of enlegungs- schrift 2.441.950 ' describes a loudspeaker box, by which an attempt has been made to solve this drawback by means of 10 applying a clear transparent material in the construction- showing a smaller size. The drawback of the large sizes however is not realy solved in this way. It is accordingly an object of the invention to provide a loudspeaker box, costructed in such a way that 15 only one loudspeaker box is needed for the reproduction of the stereosignal and yet a natural reproduction is realized. It is a further object of the invention, that the two earlier mentioned loudspeakers are housed in one 20 enclosed space intended for the reproduction of the left respectivily right channel of a stereosignal and that the vertical distance between the centre lines of the two loudspeakers is such, that as well the corresponding magnetic fields do not influence each other as that the 25 damping is balanced. In consequence a stereo system will need only one loudspeaker box, .by which due to the specific distance between the two loudspeakers a state is obtained at which the magnetic fields do not influence each other and the 30 damping is balanced, resulting in a distortion free reproduction. The invention will be explained hereinafter with reference to the accompaning drawing, in which an example of the design is displayed» 35 Fig. 1 depicts a slmplefied isometric view of the design of the loudspeaker box in accordance with the invention. Fig. 2 ! is a cross-sectional diagram of th loudspeaker box iii fig. 1.1. In the jdrawing a loudspeakerbox 1 is illustrated, in this case arranged as a bass-reflex type of loudspeake box. The basic ; principle of the invention is also applicable in t^e closed-acoustic box type of loudspeaker housing. The loudspeaker box 1 is equiped with two loudspeakers 2 aid 3, which are mounted on two neighbourin walls of a loudspeaker box 1 characterized by a square cross-section and ' : an undevided volume, so that the centre lines 4, 5 of the loudspeakers 2. 3 will cross under 90 degrees. The minimum vertical distance between the centr lines 4 and 5 of /the loudspeakers 2 and 3 is such, that th magnetic fields jof the loudspeakers 2 and 3 do not influence each other. Due to the non-interacting magneti fields, no mutual influencing of the loudspeakers 2 and will take place. r The vertical distance between the centr lines 4 and 5 of; the loudspeakers 2 and 3 is such that th damping inside the loudspeaker box 1 is balanced and n resonance will £|e added to the loudspeaker box 1. Th absence of a mutual inter-action of the magnetic fields an the balanced damping in the loudspeaker box 1 wit undevided volumejguarentee a distortion free reproductio of the stereo signal. As illustrated in fig. 2 the loudspeaker box will be positioned with one diagonal perpendicular to a wall 7 , causing the sound to be reflected into th listening room. : The invention is not restricted to the precedin description of the design example only, which can be varie within the scope df the invention in different ways.

Claims: CLAIMS 1. Loudspeaker box, comprising two for the reproduction of at least the low-freguency region intended loudspeakers of which the centre lines are crossin whereby the two mentioned loudspeakers are intended for t reproduction of the left reβpectivily the right channel the stereo signal and that the vertical distance betwee the centre lines of the two loudspeakers is such that t corresponding magnetic fields do not influence each othe and that the damping of the emitted soundwaves inside th loudspeaker box is balanced. 2. Loudspeaker box according to Claim 1, an further comprising a square cross-section as characteristi for the loudspeaker box. 3. Loudspeaker box according to Claim 2 , an further comprising an undevided inner room a characteristic for the loudspeaker box-.

Inventors: OLIEMULLER ROBERT JURRIEN, OLIEMULLER, ROBERT, JURRIEN
Applicants: OLIEMULLER ROBERT JURRIEN, OLIEMULLER, ROBERT, JURRIEN
Application year: 1990
Main classification: H04R1
IPC codes: H04R5