What are "Full range speaker"


I wonder what constitutes a so called "full range speaker"?

Besides the low frequency reproduction, what are other things that are typical of a full range speaker?

I have a pair of Spendor S8 and are they qualified as full range speaker?
andy2
The Loth looks interesting, but I notice it only goes down to 24Hz and there's no +/- qualification on that spec.

I'm not saying that there aren't some very fine single driver cone speakers, but they aren't full range.
Onhwy61, your ear can't even hear things below 45 hz so I don't know what's your arguement.
AER is 20hz to 21Khz
S23chang, where did you get that figure from? Sources I know of say 20hz is the human low range limit.

My speakers do -1+1db sub 20hz to beyond 20khz. But then, they are three way.
Yes, we're physically capable of 20 to 20k yet we don't hear the extremes often unless you have your system is hooked up to a frequency generator.
I'm not sure what note you can hear at 20 hz but I only felt the "wind".

Happy listening
I can't think of anything that generates a 20Hz note. However, there are plenty of natural phenomena that generate sounds incorporating 20Hz frequency in part. For that matter, much lower frequencies too.