"Tom1W" wrote in message
...
: I would like to pose a question to those who understand speaker
technology: Why
: is it that we do not see as many loudspeakers these days with woofers
beyond 6"
: to 8". I recall many years ago, that more "serious" loudspeakers were sold
with
: at least 10" woofers and some even as large as 15". Is a large woofer
needed to
: evenly and to accurately and loudly enough present the lowest bass tones
or has
: technology changed where size does not matter?

Use the simple analogy of a engine cilinder.
you want to create volume, so it's long throw, narrow cilinder
or wide cilinder, short stroke

long throw will have it's problems, eg. you need a long, homogenous
magnetic field for the voicecoil to move within

using a large area has problems like conus break-up and mass-to-move

it's really a matter of cost (magnetics, conus material, accurate line-up,
etc.)
Eg. check out Volt drivers
Rudy