I've had a week with the unit in my system. I am going from no pre to this, so some findings are likely not just characteristic of the P-3. The sound stage is moved forward, with an excellent increase in height and width. Incredible dynamics, micro and macro. Holographic like imaging..in two dimensions though. Much improved density of mid and lower midrange instruments. It is a very involving and realistic sound. I am getting two not so desirable findings. There is a tilt upward in higher midrange. Some of this is offset by more prominent and rounder bass (this adds a touch of warmth which is welcome). Also, while the stage is moved forward, it's depth is flattened. The latter improved somewhat by pulling speakers out further. While my room is large, I have seating constraints which require me to have a near field position, so I would rather not have a nearer, less deep soundstage. Standing back in the room the sound is impressive and realistic. I like the construction, remote, and the volume knob feel is outstanding. I am going to try some different cabling and tweaking with an expert friend, and see if I can improve this. If not, this will not be the best pre for my situation.
I do chuckle when once talking to George Kyomi, a high end audio and professional musician in Chicago, who once challenged me to explain imaging depth in real life performances...