If the aim is to achieve a "flat" sound response, you could take it one step further and use a microphone to check how it sounds in a given space. Like Sonarwor

If the aim is to achieve a "flat" sound response, you could take it one step further and use a microphone to check how it sounds in a given space. Like Sonarworks SoundID. Some studio monitor speakers have this built in. Treat the room, position the speakers, put a microphone to the listening position and apply a (often wild) EQ curve until the response is flat (enough).