will this speaker design work?

Question

as you can see i put the magnet and coil at the very bottom of the cone and wrapped the coil around the magnet and that's pretty much it so i need an opinion will this work or is it back to the drawing board


hers a link to the design it's not very good because i drew it very fast
http://img49.imageshack.us/my.php?image=save0232fd8.jpg

okay so heres attempt number 2
http://img219.imageshack.us/my.php?image=save0233qz2.jpg

Answer 1

It's hard to see what's physically connected to what in the picture, but: you need a frame to attach the magnet to, and to attach the outer rim of the cone to. The cone attachment has to be flexible to let the cone move in and out, but rigid enough in the radial direction to keep the coil and the inner part of the cone from scraping the magnet. I know this is difficult when building from scratch, but you really need it to make decent sound. Finally, you get a stronger magnetic field and a more efficient speaker if you provided a magnetic path from the lower pole of the magnet to the area surrounding the coil, so the coil is actually inside a circular magnetic slot with opposite magnetic poles on the inside and the outside, making a strong field. See the ref. for a picture.

Answer 2

no the coil needs to be attached to the cone not the magnet, the alternating current in the coil is what moves the cone and produces the sound