Much has to do with design the larger the diaphragm. The better the bass
Soundlabs is the best although big with their excellent autoformers
their panel has different size segments for high frequencies,mids and bass
you truly need at least the bid model $15 k + to get the speed and realism of a true full range stat. I have owned Everything out there pretty much .
Apogee ribbons with sub bass in the mini grands was the fastest dynamic panel I ever had , for a true Electrostst The Big sound labs are great if you have the room
they are not as power hungry as I thought they are excellent , the. MBL Omni directional speakers are the only ones I prefer more and don’t need as much space., even their 126 monitors with good subs Giant killer setup !!