Speaker enclosure having parallel porting channels for mid-range and bass speakers

• US 5,844,176 A
• Filed: 09/19/1996
• Issued: 12/01/1998
• Est. Priority Date: 09/19/1996
• Status: Expired due to Fees

• Current Assignee: Clark, Steven
• Original Assignee: Clark, Steven
• Inventors: Clark, Steven
• Primary Examiner(s): LEE, EDDIE C H
• Application Number:
  US08/715,831
• Time in Patent Office: 803 Days
• Field of Search: 181/144, 181/145, 181/148, 181/153, 181/155, 181/156, 181/196, 181/197, 181/199, 351/154, 351/155, 351/159
• US Class Current: 181/148
• CPC Class Codes: H04R 1/2819 for loudspeaker transducers

Abstract

A speaker enclosure with at least one woofer and one mid-range speaker with associated parallel sound channels and ports for direction of the back waves generated by the speakers. The woofer and mid-range speaker are in a spaced relationship with the sound channel ports for the woofer speaker in close proximity to the mid-range speaker and the mid-range sound channel port in close proximity to the woofer speaker. The sound channels for the mid-range and woofer speakers are adjacent and parallel to each other. The back waves generated by the speakers travel along the sound channels which form a sound traveling path. The ports are located at a distance from the speakers generating the sound waves, but adjacent to other speakers, resulting in a life-like and rich sound.

Claims

1. A loud speaker enclosure combination comprising:

(a) at least one woofer type speaker;

(b) at least one mid-range type speaker;

(c) a woofer sound channel that has a first portion whose walls begin at and are perpendicular to a face of said woofer type speaker and extends rearwards from said face of said woofer type speaker to an angled reflecting plate portion of said woofer sound channel which lead to and then narrows to a second smaller portion of said woofer sound channel that terminates at a woofer sound channel port;

(d) a mid-range sound channel that has a first portion whose walls begin at and are perpendicular to a face of said mid-range type speaker and extends rearwards from said face of said mid-range type speaker to an angled reflecting plate portion of said mid-range sound channel which leads to and then narrows to a second smaller portion of said mid-range sound channel that terminates at a mid-range sound channel port, said mid-range sound channel adjacent and parallel to said woofer sound channel.

2. A loud speaker enclosure combination as set forth in claim 1 wherein said woofer sound channel'"'"'s first portion length is at least twice said woofer type speaker'"'"'s diameter and said mid-range sound channel'"'"'s first portion is at least twice said mid-range type speaker'"'"'s diameter.

3. A loud speaker enclosure combination as set forth in claim 2 wherein said mid-range type speaker and said woofer type speaker define a vertical plane.

4. A loud speaker enclosure combination as set forth in claim 3 wherein said woofer sound channel'"'"'s angled reflecting plate portion is at an angle of at least 45°

and said mid-range sound channel'"'"'s angled reflecting plate portion is at an angle of at least 45°

.

5. A loud speaker enclosure combination as set forth in claim 4 wherein said woofer sound channel'"'"'s angled reflecting plate portion is a curvilinear shape and said mid-range sound channel'"'"'s angled reflecting plate portion is a curvilinear shape.

6. A loud speaker enclosure combination as set forth in claim 5 wherein said woofer sound channel'"'"'s second smaller portion'"'"'s cross-sectional area is two third'"'"'s of a cross-sectional area of the woofer sound channel'"'"'s first portion and said mid-range sound channel'"'"'s second smaller portion'"'"'s cross-sectional area is two third'"'"'s of a cross-sectional area of the mid-range sound channel'"'"'s first portion.

7. A loud speaker enclosure combination as set forth in claim 6 wherein said woofer sound channel and said mid-range sound channel are lined with sound absorbing material.