Nobody's started this yet, so I will. The Audio Zenith PMx2 is a modification to the popular Oppo PM2 Planar Magnetic Headphone, made by Alex of Audio Zenith. Thanks to thousands of measurements and careful adjustments, Audio Zenith have created an incredibly flat and I mean FLAT and utterly resolving headphone. In this thread, we will talk about people's impressions and reactions to the PMx2. Let's get this party started!