Dgad, the Devore-Shindo combination is not something that I think would be very impressive in a short listening session. They take a while to appreciate their strengths which lie more in the accurate reproduction of acoustical instruments than bass extension or top end detail IMO
I have heard the Devore with Leben and Shindo amps and also heard the Devores in my Shindo system. I really enjoyed the evenhanded and uncolored presentation of the Devores. They completely managed to disappear - sonically and spatially - and just let the music through. Their presentation does not draw attention to itself at all, which makes it very easy to disregard them in a short listening session.
The Devores do require very careful positioning - in my friends room they really did not work well as placement was restricted and the room has a severe bass roll-off. Combined with the articulate lean bass of the Devore a bad room can be a very disappointing combination. The Devore's really do not have a "PA" style bass at all, but they do capture drums and bass very nicely and naturally. IN the wrong room they could be lean and bright; in the right room the Shindo/Devore combination can be excellent.
Just my experience so far of course...
Rene