[Speaker Design]

i want a site,or  documents give me theory,formular,...ect...Because i want to learn how a speaker box work,and the wave appear in the box.

I dislike DIY pages because it don't give me more information.

[request PCb' standard!]

we often use library of an EDA software,but i don't like it,because it's not good for hand-made PCB

so i design a new one,i'm using orcad layout plus

now,any body can tell me your experience?
-what padshape is good?(round,oblong,regtangular,oval...)
-how width,how height of the pad is enough ?

......

please help me! (and please don't ask me "don't design it!" because i still want to design it  ;D )