Patent ID: 8335337

Claim:
A loudspeaker, comprising: a frame having a first end and a second end, said second end including a radial alignment surface and at least one vertical alignment member; a voice coil coupled to and moveable relative to said frame; a motor assembly including a top plate, a pot structure having a pot wall and a back plate, and a magnet located between said top plate and said back plate, said top plate being spaced from said pot wall to form a magnetic gap between them; said pot wall of said pot structure being formed with a radial alignment surface and at least one notch extending radially inwardly relative to said radial alignment surface; said frame being mounted to said motor assembly so that said radial alignment surface of said second end of said frame contacts said radial alignment surface of said pot wall, and said at least one vertical alignment member extends into said at least one notch in said pot wall, whereby said voice coil is radially and vertically aligned within said magnetic gap.