I once made a bit of a fool of myself in a serious hi-fi shop. I had gone in to listen to the very best amplifiers/speakers available (no chance of buying!!) and taken a few albums of my own. They played one on a Linn Sondek through a Linn amplifier setup with Ruark speakers. This is big money stuff, Linn are made in Scotland and Ruark in Southend-on-Sea, British equipment, fly the flag !
I asked the demonstrator if he could boost the bass a bit and he said there are no tone controls. "What you are hearing is exactly what was recorded in the studio, why would you want to change that?"