Today things have evened out more, but yesteryear things were quite different, speaker balance more than electronics seemed to dictate the "house sound"
Back in the 70's 80's early 90's The Brit's had a house sound that was a purposely laid back midrange by about -3db this gave the illusion of depth, half of Australia followed this sound. " Celef, non bbc Rogers, IMF, TDL etc"
The Yanks were a very up front "presence" type of sound. The other half of Australia followed this sound. "Klipch, JBL, Cerwin Vega, Electrovoice etc"
And the Germans were pretty much on the mark as they are with most things, which I think most of us try to get today. "Magnat, Canton, Quadral etc" Only a small percentage of Australians liked this sound, me included
Cheers George