Space saving means of combining high/mid frequency sound generation/diffraction and reflection in the mouth of a low frequency port

Abstract

A loudspeaker cabinet design that increases dispersion and minimizes cabinet size by not only mounting mid and high frequency generators in the mouth of the port horn, but also placing diffractors and reflectors within the mouth of the port horn. Additionally grab handle cut-outs are placed at specific locations in the side walls to increase horizontal dispersion.

The inventive device creates greater vertical and horizontal dispersion characteristics from a smaller than previously possible cabinet, aiding particularly those who require frequent transport of loudspeakers.

Claims

1. A loudspeaker cabinet design which minimizes size and increases dispersion by combining transducers, reflectors, and diffractors all within the port mouth. The mid/high frequency driver(s) are mounted on the upward angled portion of the port mouth specifically to improve vertical dispersion. Grab handle cut-outs are specifically and intentionally placed to increase side dispersion.

Description

DESCRIPTION OF DRAWINGS

[0005] FIG. 1 Depicts the invention as described. Traditional “ported” cabinet designs employee a low frequency driver (G), in a cabinet that adds a tuned port (A). Some ports use flares at the ends of the port to aid in pressure change (an acoustic transformer). That acoustic transformer is the “port mouth” (B). The difference in this design is that the mid/high transducer(s) (F), the conical reflector (C), the port mouth (B), and any diffractors desired (laid flat on top of the driver, not visible in drawing) are all contained within the space labelled (H).

[0006] It should be noted that by mounting the mid/high driver(s) (F) on the slanted plane of the port mouth, vertical dispersion is also dramatically improved in a desired direction. (Grab handle cut-outs not shown for clarity.)

[0007] FIG. 2 Shows the overall cabinet design on the left, and the area where the port mouth allows all frequencies to exit on the far right. (Grab handle cut-outs not shown for clarity.)

[0008] FIG. 3 Specifically depicts the path of mid and high frequencies (dotted lines A) originating at the driver (B), then reflecting off the conical reflector (C) and exiting through the grab-handle cut-outs on each side of the cabinet (D) to improve side dispersion. Grab-handle cutouts (D) are specifically located to increase dispersion.

[0009] As to a further discussion of the manner of usage and operation of the present invention, the same should be apparent from the above description. Accordingly, no further discussion relating to the manner of usage and operation will be provided.

[0010] With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

[0011] Therefore, the foregoing is considered as illustrative only of the principles of the invention further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents maybe resorted to, falling within the scope of the invention.