Patent ID: 7233681

Claim:
An audio speaker comprising: a frame; a motor assembly coupled to the frame and having an axis A m ; a diaphragm coupled to the frame and having an OD with an axis A od and an ID with an axis A id , wherein the A od is not coincident with the A id ; a bobbin coupled to the diaphragm; a voice coil coupled to the bobbin; a spider coupled to the bobbin and to the frame and having an axis A sp of suspension; a surround coupled to the diaphragm and to the frame and having an axis A su of suspension; and an eccentric spacer coupled between the bobbin and the diaphragm such that the eccentric spacer has a long side coupled to a short side of the diaphragm and a short side coupled to a long side of the diaphragm; and wherein A sp , A su , A od , and A m are substantially coaxial.