Wikipedia,
woofer typically from around 40 hertz up to about a kilohertz or higher
subwoofer typical frequency range for a subwoofer is about 20–200 Hz for consumer products,[1] below 100 Hz for professional live sound,[2] and below 80 Hz in THX-approved systems
mid woofersIn two-way loudspeaker systems, the drivers handling the lower frequencies are also obliged to cover a substantial part of the midrange, often as high as 1000 or 2000Hz; such drivers are commonly termed mid woofers.
Too many darn woofers