RELATED POSTS Beyerdynamic DT 270 PRO PS Audio Showcases Flagship PMG Signature Series WE ARE REWIND Unveils Limited Edition Elvis Presley Cassette Player What’s in a name? Well, a name can tell you a lot. As in this case, with the Momentum update. The MvX stands for Mass times Velocity, which is the equation for … Continue reading Dan D’Agostino Momentum M400 MvX update