MBL is a perfect example of not the most efficient ,But the low sensitivity is misleading ,for it disperses in 360 degrees sound evenly ,not just to the front
and the tweeter,midrange not being n a box and direct coupled have exceptional
transient response, micro,and macro dynamics as well as dynamics ,
at a cost in power required, and $$ cost. That’s why. Am forced to save to buy their excellent 126 model used with dual SVS 4000 SB subs.