I don't know the seller but I owned a set of Nightingales for four years. They are very lively sounding speakers, even at low volumes. They also have amazing dynamics and I loved them for movies (jump! factor).
I sold my Nightingales to finance new, more expensive speakers; and have missed them since.
I am not in a position to make any purchases right now, or I would snatch these up.
These speakers are a "best kept secret" that only a handful of Odyssey owners know about. Don't overlook them...
-Chuck