Making speakers sound tonally similar with an equalizer

I created a mechanical equalizer using Helmhotz method that bent the room to the speakers large bandwifth response of timbre voices not using any thin test frequency...

Use ears not microphone..

Your two speakers sound will blend together their particular response more easily if the room is adapted to them by your ears guiding tuning..

It is a simple psycho acoustic fact that the ears/brain adapt itself rapidly to new acoustic conditions and translate sound wave into whatever the few second response to the room will make it meaningful for them ...

Acoustic is key way more than the choice of the speakers , especially if the speakers are already good...

Electronic equalization is a tool with very specific limits..

Mechanical equalization is done with Helmholtz resonators and diffusers that become integrated parts of a room..

It takes a dedicated room for sure...

Evolution for one million year make us focus on specific timbre voice recognition not on flat frequency response...

Mechanical equalization of a room with our EARS is better than electronical EQ with a mic...It cost nothing...Save a dedicated room...It is more fun to tune and more powerful for improving S.Q....

It take time for sure, many weeks and many months of listening experiments to tune it....

Way more gratifying than buying a tool which will make your sweet spot not so  useful  because located in millimeter... I have 2 sweet spots a few inches large in my small square room so good it is impossible to chose only one...