Brainwavz HM9 – An M50 Killer? Headfonics August 18, 2013 Dynamic Driver, Headphones 3 MP4Nation’s Brainwavz brand showed up to the headphone scene with their Alpha and Beta IEMs, which, at the time, were a screaming deal in a world (2008) there were very few options for IEMs other than the JVC M...