high-efficiency loudspeakers

Did anybody  who listen above mention LS  can say about  tendency 
high efficiency loudspeakers
to make thinner sound ( i dont mean lower bass) compare to
traditional 3 way speakers?  Thinner sound  especially made
piano sound smaller and man vocal also 

Audio-Note  is not champion for bass , it is  reason why the
manufacturer requirement to put in corner, The corner placement
increase bass for 3-4db 

Did anybody listen Tribeca-001 by bache in NY audio show?

@phusis 
This speakers is huge. WAF-is almost zero

wolf garcia :   Good post , I have similar  Bacheaudio-002