No manufacturer — and I mean ZERO— uses any EQ in their audio systems at high-end audio shows.
Ahem!
- Vandersteen
- Legacy
- JL Audio
Just to name a few.
The use of an EQ is controversial in some ways because of how they were sold initially in the home and in some because users don’t really understand what to do with them.
The absolute best scenarios where I can point to tremendous gains is in clipping bass peaks and tuning a sub to have a descending FR from 16 Hz to 80 Hz.
The worst scenarios are when users try to "flatten" their speakers and end up using a horizontally flat curve.
Overall I’m with Floyd Toole, and believe that EQ’s should be used sparingly and precisely. If you attempt complete "room correction" what then is the point of picking out any particular brand of speaker over another?