Speaker system

Abstract

A speaker system comprises a housing that includes a front wall with a plurality of openings, and first and second exterior sidewalls. A plurality of vertically arranged speakers are each placed into an associated one of the plurality of openings and secured to the housing. A hemispherical concave interior wall is positioned in back of the plurality of speakers and within said first and second sidewalls to disperse and attenuate audio waves within the housing. The housing may also include a tuned, dampening bisector that is mounted to the hemispherical concave interior wall positioned in back of said plurality of speakers and within the first and second sidewalls. The bisector is preferably located at the center of the hemispherical concave interior wall. A rear exterior wall defines a back of the speaker system and the front wall defines a front of the speaker system. The first and second interior sidewalls extend from front to back and preferably taper inward from back to front of the speaker system, wherein the first and second interior sidewalls each mate with the hemispherical concave interior wall. The plurality of speakers preferably include mid-range drivers and tweeters. For example there may be two tweeters associated with every mid-range driver. In one embodiment there are for example twenty-one mid-range driver and forty-two tweeters, wherein two tweeter openings are adjacent to an associated one of the mid-range openings. The speakers are arranged electrically in a series/parallel configuration. For example, several mid-range speakers/drivers are arranged in a series configuration to provide a mid-range subarray, and the number of mid-range drivers placed into each sub-array is selected such that the total Q factor for the sub-array is approximately one.

1 . A speaker system, comprising: 
 a housing that includes a front wall with a plurality of openings, and first and second exterior sidewalls;    a plurality of vertically arranged speakers each placed into an associated one of said plurality of openings and secured to said housing; and    a hemispherical concave interior wall positioned in back of said plurality of speakers and within said first and second exterior sidewalls.    
     
     
         2 . The speaker system of  claim 1 , wherein said openings include a plurality of mid-range openings and at least one tweeter opening adjacent to an associated one of said mid-range openings.  
     
     
         3 . The speaker system of  claim 1 , further comprising: 
 a rear exterior wall that defines a back of said speaker system, wherein said front wall defines a front of said speaker system; and    first and second interior sidewalls that taper inward in the direction of back to front of said speaker system, wherein said first and second interior sidewalls each mate with said hemispherical concave interior wall.    
     
     
         4 . The speaker system of  claim 1 , wherein said hemispherical concave interior wall comprises a polyvinyl chloride material.  
     
     
         5 . The speaker system of  claim 1 , further comprising a bisector mounted to said hemispherical concave interior wall positioned in back of said plurality of speakers and within said first and second exterior sidewalls.  
     
     
         6 . The speaker system of  claim 1 , wherein said speakers include a plurality of mid-range speakers and a plurality of tweeters, wherein said mid-range speakers are arranged in a series/parallel electrical configuration including a plurality of speaker sub-arrays each electrically in parallel with one another, and each of said plurality of speaker sub-arrays comprising a plurality of mid-range speakers electrically in series.  
     
     
         7 . The speaker system of  claim 6 , wherein each of said mid-ranges speakers within a sub-array has an associated quality (Q) factor, and sum of the quality factors for said mid-range speakers within a sub-array is approximately equal to 1/{square root}{square root over (2)}.  
     
     
         8 . The speaker system of  claim 6 , wherein each of said mid-ranges speakers within a subarray has an associated quality (Q) factor, and sum of the quality factors for said mid-range speakers within a sub-array is in the range of about 0.5 to 0.9.  
     
     
         9 . The speaker system of  claim 1 , further comprising: 
 a rear exterior wall that defines a back of said speaker system, wherein said front wall defines a front of said speaker system; and    first and second interior segmented sidewalls, each comprising 
 a first segment that tapers inward in the direction of back to front, wherein said first and second interior sidewalls each mate at first ends thereof with said hemispherical concave interior wall.  
   
     
     
         10 . A speaker system, comprising: 
 a housing that includes a front wall with a plurality of openings, and first and second exterior sidewalls;    a plurality of vertically arranged speakers each placed into an associated one of said plurality of openings and secured to said housing, wherein said speakers are partitioned into a plurality of sub-arrays, wherein said sub-arrays includes a plurality of series connected speakers and said sub-arrays are arranged electrically parallel to one another; and    a hemispherical concave interior wall positioned in back of said plurality of speakers and within said first and second exterior sidewalls.    
     
     
         11 . The speaker system of  claim 10 , wherein said sub-arrays comprise: 
 a plurality of mid-range sub-arrays each comprising a plurality of series connected mid-range speakers each having an associated Q-factor, wherein the sum of said associated Q-factors is equal to about is in the range of about 0.5 to 0.9, and each of said plurality of mid-range sub-arrays is electrically parallel to one another; and    a plurality of tweeter sub-arrays each comprising a plurality of series connected tweeters, and each of said plurality of tweeter sub-arrays is electrically parallel to one another.    
     
     
         12 . The speaker system of  claim 11 , further comprising 
 a woofer unit that includes a cylindrical housing comprising a first woofer and a second woofer arranged in a push-pull configuration.    
     
     
         13 . The speaker system of  claim 12 , wherein said woofer unit further comprises a bisector within said cylindrical housing and co-axial with said cylindrical housing, wherein said bisector extends between said first and second woofers.