Courvoisier XO Imperial 1LT Consistently recognised as one of the finest XOs in the world, Courvoisier XO Imperial is a very old blend of fine and well-matured cognacs from the exclusive Grande Champagne cru, along with selected aged spirit from the Petite Champagne and distinguished Borderies crus. The perfect balance of intense flavours have been patiently evolved and nurtured for at least two decades.