Equalization

Hmm that is interesting.
So people use no filtering and just let the speakers speak on their own?

This is great info.
Being a Musician (50yers+) and have done some live sound.
I have also recorded in many studios over the years is the reason I asked the question.
Studios go to extremes to "Tune' their monitors to the room and the room itself.
I took an RIAA recording course at Intermedia Sound in Boston.
Famous for Recording Aerosmith's first Album and other well known artists like Donna summer and the cars.
The Room was actually built on Truck Shock absorbers.
Although I have plenty of Music and Audio experience the Hi End Hi Fi Purist world is intriguing.I am learning a whole new concept of listening to music.