Q Frequency In-Dash Clarion CZ505

Hello. I received help here when asking about MB-EX on my Clarion CZ505. I call to ask, about the parametric EQ system, it has frequency, gain, and "Q". What is Q? It has like a .7, 1.0, 1.4, and 2 setting for each of the bass, midrange, and treble settings. There is a visual on the ClarionUSA web page that shows 'something' maybe like one of those termlab oscilloscope readings. I think I am in the final stages of tuning my system, then I can just put on the music and send all my attention to the volume knob. I am dangerous driving fiddling with my CD player. I was 16 and had a wreck because of it- and during the time I sold car audio I often recommended a remote control because of this. Thank You Thank You very much

The Q is how wide the desired frequency is affected. I found this on . the lower the Q value the wider the range, whereas the higher the value the more sharp the range. So I can dial in 100Hz and make the Q wider to cover, say, 80-120Hz with, say, .7 OR narrower to 95Hz and 105Hz with a Q of 1.4. That is how I interpreted the paragraph. So, now a new question. A graphic EQ affects the 100HZ Q with what range? Is it universal or specific to each model/brand AND also does the boost/cut in dB of gain affect it differently? ........more confusion sets in