What is response bandwidth

[charlie58]

I am seeing ranges in "response bandwidth" from 5 - 100000. What is response band width? What numbers are important? Are any of these numbers out of humans hearing range?

 

[soundguruman]

The lowest number is the bass frequencies, the highest is the treble frequencies.
The normal range of human hearing is 20-20Khz. However humans can hear beyond that range. The wider the range, the better, generally.