Before we get into the review, I apologize for this being a bit rushed compared to what I would want it to be. I'm trying to pen this before I head out for the easter weekend.   Introduction   Oppo, a name not originally associated with HiFi headphone audio, has come together to create an first for a headphone here in the PM-3. This all started when Oppo, usually noted for their Blu Ray players, entered the high end headphone market with their PM-1, then PM-2 models - later this culminated in their drive for an efficient, closed Planar Magnetic...