Reflex compression valve - divided chamber loudspeaker cabinet

• US 5,514,841 A
• Filed: 03/30/1994
• Issued: 05/07/1996
• Est. Priority Date: 03/30/1994
• Status: Expired due to Fees

• Current Assignee: Donald C. Rochon
• Original Assignee: Donald C. Rochon
• Inventors: Rochon, Donald C.
• Primary Examiner(s): Dang, Khanh
• Application Number:
  US08/220,444
• Time in Patent Office: 769 Days
• Field of Search: 181/144, 181/145, 181/146, 181/147, 181/148, 181/151, 181/152, 181/156, 181/199
• US Class Current: 181/156
• CPC Class Codes: H04R 1/2819 for loudspeaker transducers

Abstract

The present invention relates to a reflex compression valve--divided chamber speaker cabinet which improves acoustic frequencies emanating from the speaker cabinet by specially designed and positioned ports located frontally and rearwardly within the speaker cabinet. The speaker cabinet greatly reduces reverb or lag caused by uncontrolled reflecting air within a standard baffle chamber resulting from the speaker cabinet design and electrical passive crossover network.

Claims

1. A reflex compression dual valve divided chamber speaker cabinet, said dual valve divided chamber speaker cabinet having a first half and a second half and comprising:

a) a front panel;

b) a rear panel;

c) a bottom surface;

d) a divider for dividing said first half and said second half of said dual valve divided chamber speaker cabinet;

e) a primary speaker system selected from the group consisting of a tweeter, mid-range and mid-woofer, said primary speaker system being affixed to said front panel of said dual valve divided chamber speaker cabinet, said primary speaker system being located on said first half of said dual valve divided chamber speaker cabinet;

f) a secondary speaker system;

g) a woofer of said secondary speaker system affixed to said front panel of said dual valve divided chamber speaker cabinet, said secondary speaker system being located on said second half of said dual valve divided chamber speaker cabinet;

h) at least one port located on said front panel of said dual valve divided chamber speaker cabinet;

i) a plurality of ports located on said rear panel of said dual valve divided chamber speaker cabinet with at least one of said plurality of ports being L-shaped for increasing tuning of said dual valve divided chamber speaker cabinet;

j) a front lower surface located at said bottom surface of said dual valve divided chamber speaker cabinet having an angled side for providing an air pocket cushion for reducing fold back of bass waves;

k) an internal air space located between said first half and said second half of said dual valve divided chamber speaker cabinet for reducing distortion factors to said secondary speaker system containing said woofer and for improving clarity of said primary speaker system; and

,

l) a high quality passive roll-off cross over network connecting both said primary speaker system and said secondary speaker system.

2. A reflex compression valve divided chamber speaker cabinet as described in claim 1, wherein said dual valve divided chamber speaker cabinet contains an internal layer of polyester batting to form a valve.

3. A reflex compression valve divided chamber speaker cabinet as described in claim 2, wherein said polyester batting is of low density and light weight.

4. A reflex compression valve divided chamber speaker cabinet as described in claim 1, wherein said front port is semi-choked to reduce air flow.

5. A reflex compression valve divided chamber speaker cabinet as described in claim 4, wherein a front panel port tuning is accomplished by length adjusting.

6. A reflex compression valve divided chamber speaker cabinet as described in claim 4, wherein a rear panel port tuning is accomplished by length adjusting.

7. A reflex compression valve divided chamber speaker cabinet as described in claim 4, wherein said front port is down tuned to a lowest possible frequency of a fold created by said divider and a batting valve.

8. A reflex compression valve divided chamber speaker cabinet as described in claim 1, wherein said dual valve divided chamber speaker cabinet is sealed in its entirety with a batting functioning to damper vibration for said dual valve divided chamber speaker cabinet.

9. A reflex compression valve divided chamber speaker cabinet as described in claim 1, wherein placement of said secondary speaker is off-set providing reduced outside air disturbance in relation to an imaginary vertical central axis of said primary speaker system which audibly reduces frequency masking particularly in higher frequency ranges.

10. A reflex compression valve divided chamber speaker cabinet as described in claim 1, wherein said crossover network is four-way crossover network.

11. A reflex compression valve divided chamber speaker cabinet as described in claim 1, wherein said speaker cabinet is manufactured from composites selected from the group consisting of fiberglass, plastic, epoxy, metal, metal alloys, wood and a combination thereof.

12. A reflex compression valve divided chamber speaker cabinet as described in claim 11, wherein said dual valve divided chamber speaker cabinet is 21 inches in height, 13 inches in width and 117/8 inches in depth.

13. A reflex compression valve divided chamber speaker cabinet as described in claim 12, wherein said dual valve divided chamber speaker cabinet has an acoustically permeable front speaker protective cover over said front panel.