EP1511353A1 - Loudspeaker cabinet - Google Patents

Abstract

The loudspeaker housing has a bottom (14) and a top (13) joined by essentially flat acoustic walls (10-12) with acoustic windows and several loudspeakers of different characteristics within the housing. Three acoustic walls form an equilateral triangle in the cross-sectional view. The forward facing large acoustic wall (10) is associated with the co-called front or rear center and the equal sides (11,12) are associated with the left and right front or rear channels. An arrangement is provided at the rear of the housing for mounting the housing on a wall or stand.

Description

The invention relates to a speaker housing, comprising a bottom and a lid, with bottom and lid over intermediate, substantially flat Baffles with shop windows are interconnected and interconnected and located in the Inside the housing are several speakers of different characteristics

It is a speaker system known (DE 693 29 001 T2), in which at least three Speaker in a fixed relative arrangement along a curved surface are arranged to produce a certain sound propagation.

The present invention is concerned with such an arrangement of the individual Speaker of a system to realize, so that the case different Application purposes and installation ideas is fair.

This is achieved in a loudspeaker enclosure of the type mentioned by, that three baffles in cross-sectional view form an isosceles triangle; the forward facing larger baffle the so-called front or rear center is assigned, the two equal sized baffles depending on the mounting location of the left Front channel (right rear channel) and the right front channel (left rear channel) are assigned, and that means for attaching the housing to a wall or a tripod in the rear part of the housing are provided.

Figur 1 zeigt eine schaubildliche Ansicht eines Lautsprechergehäuses gemäß der Erfindung.

Figur 2 zeigt eine Anordnung von zwei Lautsprechergehäusen in einem Raum in Draufsicht.

Figur 3 zeigt die Anordnung eines Lautsprechergehäuses in Vorderansicht.

The invention will be explained below with reference to the drawings, for example.

FIG. 1 shows a perspective view of a loudspeaker housing according to the invention.

Figure 2 shows an arrangement of two loudspeaker cabinets in a room in plan view.

FIG. 3 shows the arrangement of a loudspeaker housing in front view.

FIG. 1 shows a loudspeaker housing. It essentially has the form of a Trapezoid with a substantially flat lid 13 and a corresponding 14. Floor and cover have the shape of a isosceles triangle. Bottom and lid can also be forward diverge.

The distances between the floor and the lid are determined by intermediate walls, the are essentially flat and with sound holes or sound windows are formed.

The front baffle 10 is with the relatively large front sound openings educated. Behind this baffle 10 are the speakers, depending on Arrangement with rear center or front center to be called.

The smaller baffles 11 and 12 are formed with corresponding sound windows and they are the right rear channel and the left front channel on the one hand and the right front channel and the left rear channel assigned, reflecting the nature of the arrangement depends in the room. These relationships can be seen by the view of Figure 2.

Figure 3 shows an alternative type of wall suspension with a single Speaker enclosure. An arrangement with two such housings is conceivable, wherein then the second system is replaced in the direction of the figure 3 forward.

The housing is outward at the three triangular corners with the help of aluminum profiles rounded, these profiles are attached to the baffles 10, 11 and 12. in the Rear area, the aluminum profile is designed so that there is the electrical Connections can be made and also fasteners be available. It's meant to be fixed with a tripod, as well good is also an attachment to a wall possible.

In the speaker cabinet, three separate audio channels can be combined in one housing are the left and the right and the center channel, all three channels of separate amplifiers with different signals can be controlled. Of the one channel radiates directly, while the other two are indirect radiators. The sound The left and right channels are aimed at large reflectors such as room walls and reaches the listener primarily as reflected indirect sound.

For a clear stereo or left / right separation of one of the low-mid-range sounder of both indirect radiating channels is reversed compared to the other, ie 180 ° phase-rotated.
In order to avoid mutual sound cancellation by an acoustic short circuit at low frequencies, the phase of the reversed low-midrange sounder is also rotated by up to 180 ° with the help of inductors and capacitors. Below 400 Hz there is therefore almost equal phase between the different polarized woofers, while above 400 Hz there is a phase difference of up to 180 °.

Claims (1)

Loudspeaker enclosure comprising a base and a cover, wherein the base and the cover are connected to each other and to each other via interposed, essentially planar baffles with sound windows and inside the housing a plurality of loudspeakers of different characteristics, characterized in that three baffles (10, 11, 12) form an isosceles triangle in cross-sectional view; the front facing larger baffle (10) is associated with the so-called front or rear center, and that the two equal sized baffles (11, 12) depending on the mounting location of the left front channel (right rear channel) and the right front Channel (left rear channel) are assigned and means are provided for fastening the housing to a wall or a tripod in the rear part of the housing.

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