Jeffery J Coombs

US Patent:

20010031061, Oct 18, 2001

Filed:

Jan 5, 2001

Appl. No.:

09/756336

Inventors:

Jeffery Coombs - Lake Havasu City AZ, US
Virgil Venditto - Lake Havasu City AZ, US

International Classification:

H04R001/02
H04R001/20

US Classification:

381/349000, 381/337000, 381/338000

Abstract:

A speaker apparatus comprises an enclosure including a front panel and having a sealed compartment and a ported compartment. A first driver is mounted in the front panel and within the sealed compartment. An internal passive radiator is mounted in the enclosure. A radial port is formed in the enclosure front panel and is disposed at a position facing the internal passive radiator. The speaker apparatus also includes a second driver mounted in the front panel and within the sealed compartment. The internal passive radiator is mounted between the first and the second drivers.

US Patent:

6775385, Aug 10, 2004

Filed:

Sep 21, 2000

Appl. No.:

09/668029

Inventors:

Jeffery James Coombs - Lake Havasu City AZ

Assignee:

James Loudspeaker, LLC - Lake Havasu City AZ

International Classification:

H03G 500

US Classification:

381 99, 381 98

Abstract:

An audio frequency distribution and adjusting circuit includes a variable resistor network having a first variable resistance and a second variable resistance coupled in series between a first resistor network terminal and a second resistor network terminal. The variable resistor network also includes a wiper contact with the first variable resistance and the second variable resistance for adjusting the total resistance between the resistive network terminals. The variable resistor network terminals are coupled in parallel with a low-pass filter, which is coupled to a low-frequency driver. The resistor network wiper contact is electrically coupled to the input of the high-pass filter, which is coupled to a high-frequency driver.

US Patent:

20160316296, Oct 27, 2016

Filed:

Jun 30, 2016

Appl. No.:

15/199874

Inventors:

JEFFERY JAMES COOMBS - LAKE HAVASU CITY AZ, US

International Classification:

H04R 3/14
H04R 1/34
H04R 1/22

Abstract:

A multiple speaker array for audio systems. The array comprises multiple range 30 to 40 ohm speakers connected in parallel. The number of speakers are selected to maintain the load on the system amplifier within an acceptable range, usually 1 to 8 ohms. The array may also include a low range speaker such as an 8 ohm sub-woofer. The speaker array “kit” may be used indoors or outdoors and allows the user to distribute an array of speakers and sub woofer over an area to achieve balanced coverage using conventional amplifiers.