Scientific Fidelity "Tesla" speakers.
I've auditioned about a dozen fine speakers in my large listening room, including Martin Logan, B&W and Revel, and I also own Von Schweikert VR4s and PSB Synchrony Ones. The Teslas are more natural sounding, like the music is coming from real acoustic instruments and real voices instead of electrons running through circuits, and they produce an uncannily specific and stable soundstage image. They are also exciting for rock or big orchestral pieces. They are even beautiful to look at. But when they were released, Corey Greenberg gave them a bad review in Stereophile, and Mike Maloney's nascent company never recovered. Too bad; several of his other creations, now very rare, were also special.