Patent ID: 7360626

Claim:
A loudspeaker comprising: a frame having an interior bottom surface with a side portion extending upward from, and surrounding, said interior bottom surface, said side portion terminating in an exterior edge of a uniform first height above said interior bottom surface with said exterior edge defining an opening into the frame having a first predetermined size and shape; an audio motor including a magnet assembly having an air gap mounted to the bottom surface of the frame and a thin walled bobbin having an outer surface of a first diameter with a first end with a voice coil wound thereon and located in said air gap, and a second end extending out of said air gap; an inner cone, having a top surface and a bottom surface, and having a truncated conical shape with a substantially flat top portion with an outwardly and downwardly flaring side portion with a selected interior first angle with said top portion, said inner cone having an inner edge and an outer edge, said inner edge defined by a centrally located hole of a second diameter through said top portion with said top portion having an overall third diameter at which point said side portion begins flaring downward, said outer edge defined by a free end of said side portion with said free end having a fourth diameter; said inner edge of the inner cone is affixed to said outer surface of said bobbin; said second diameter being substantially the same as said first diameter; said third diameter being larger than said second diameter; and said fourth diameter being larger than said third diameter with said fourth diameter having a second size and shape that is smaller than said first size and shape with said fourth diameter also being larger than an outer most extent of said audio motor; an outer cone having an outer edge and an inner edge, and a top surface and a bottom surface with said outer edge being substantially the same shape as said first shape and a third size that is smaller than said first size and larger than said second size, with said inner edge defined by a centrally located circular hole of a fifth diameter through the cone, said fifth diameter being smaller than said fourth diameter and larger than said third diameter, said inner edge of the outer cone is affixed to said outer surface of said side portion of said inner cone; the outer cone from the inner edge radiates outward and upward at a second selected angle to said outer edge; and a first flexible suspension connected between the exterior edge of the frame and adjacent the outer edge of the outer cone; wherein when said audio motor is energized and said voice coil is drawn inward causing the outer edge of said inner cone to move inward toward said bottom surface of said frame clearing the outer most extent of said audio motor.