Thiele-Small Parameters
for
Loudspeakers
The following listing was originally
developed by Altec Lansing in the early 1980's, and was distributed as Technical
Letter No. 267B.
Some Thiele-Small parameters are
derived from mathematical formulae using information acquired during direct
measurement of a loudspeaker. In the late 1980's, the author of this website,
while working with Mr. Jerry K. Hubbard, then head of Altec Lansing's Acoustic
Laboratory, discovered that a few of the original derivations were actually in
error.
The following Thiele-Small
parameters have been checked and corrected, where necessary, using the
mathematical formulae given to the author by Mr. Hubbard, and include most of
the newer models produced by Altec Lansing since the original publication of
Technical Letter No. 267B.