Funny how we went with animal sounds, though that isn't what this thread is about, nor about drivers. It's about the frequencies of terms we use almost every day... well, squawk went out of favor and we say midrange now... but where does one end and the other begin? I tend to think of bass as lowest notes up to just above 200hz, midrange from there to about 3 or 4 kHz, and treble everything beyond. Of course we often qualify with terms like upper and lower, and I've heard people mention the presence region which I think is part of the midrange band, and brilliance which is up in the treble somewhere. So when we speak to one another, are we always talking about the same frequencies? Where do you think bass, mid, and high frequencies live? Do you have a particular region in mind for presence and brilliance? What other frequency-band nomenclature did I overlook? Are there any agreed-upon standards for these terms? I just began to wonder about how effectively we communicate with, and understand one another on a very basic level, while reading another current thread.