Patent ID: 7848533

Claim:
A loudspeaker, comprising: a frame; a toroidal magnet being affixed to the rear of the frame, the toroidal magnet having a central passageway that opens into the frame; a cap being affixed to the rear of the magnet and closing the central passageway; a guide rod being affixed to the cap and projecting forwardly from the cap into the central passageway; a tubular former being slidably positioned upon the guide rod; a voice coil being wound about, and being affixed to, the tubular former; a forward cone having a narrow, rear end and a wide, front end, the rear end being affixed to the tubular former, the front end being affixed to the front of the frame; a rearward cone having a wide, rearward end and a narrow, forward end, the forward end having a central opening that loosely receives the rear end of the forward cone, the forward end also being affixed to the frame rearwardly of the front end of the forward cone; a forward spider being affixed to the forward end of the rearward cone and being affixed to the rear of the frame; and, a rearward spider being affixed to the rear end of the forward cone and being affixed to the rearward end of the rearward cone.