The ears sensitivity changes with level, so having speakers with a warmer and deeper sound are always chosen for lower listening levels, Where speakers that are going to rattle walls and shake plates off shelves are more apt tp have a different balance. Women prefer the highs to be rolled because most men can't hear thunder above 5 kHz or so. Women usually don't like tremendous levels of bass either as their hearing hasn't been compromised either. With very loud levels when I was installing discos I would put a 3 dip centered at 2500 HZ two octaves wide to reduce the extra intensity of big horns from Altec and JBL. Never with Klipsch. Bass was always boosted blow 60 to 70 HZ 6 to 8 db to get every one stimulated and dancing. And then I Had a nice roll-off above 6000 hz being down about 6 to 8 db to reduce hearing fatigue at 18, KHZ. I mean when you have 125 to 128 db peaks coming out of the midrange horns at 4 ft you have to be careful. Normal levels on the dance floor were from 104 to 110 db including average peaks with an additional 6 db head room. But most of that level was the driving bass. between 125 and 30 HZ where we chopped off the lower bass. Of course in the states we had to reduce the levels because of noise regulations, but in old Mexico is was always full speed ahead and the pedal to the metal. I wish I had been able to visit Europe during the time disco was king, to see how they did their recreations. I wonder if the systems sounded that much different .
Of course today with big Power and line arrays concert levels easily out perform the disco systems we had in the 70's and 80's or 90's in Old Mexico. No wonder people are going deaf!!!!