Lieven is living in Europe and he's the leader of the gang. He's running Headfonia as a side project next to his full time day job in Digital Marketing & Consultancy. He's a big fan of tube amps and custom inear monitors and has published hundreds of product reviews over the years.

The Custom IEM Story

During the last few months I have been thinking of doing a comparative Custom IEM review as more people seem to be investing in…