I remember when I heard the old JVC FX1X a long time ago..Big bassy phone. Not the most refined but a fun listen none the less. On open listen there was no highs, and mids that sounded compressed and booming bass..While burning these phones. It made me realize that one can't judge JVC phones on open listen. FX40s was another that improved a lot with burn in. FXD and FXZs.. All JVC phones actually..Just know that JVC does not preburn any earphone or headphone they make.
The FX850s even on open listen produced a sound I thought was very unique. Fullsized headphone like sound that definitely had potential. What I am hearing now is more than potential...For one.. The Silver coated OFC cables are raw as well as the drivers..The sonic upgrade that I am hearing today is astounding.
These will make a believer out of anyone that don't think much about burn in..Forget mental burn in . I have records of what I posted about how they sounded on open listen. As fantastically the sound was on open listen. The sonic changes are undeniable.. It went from being the H3 equal in SQ to what I am hearing them today. Something that is special for me. I mean there was no possible way these was gonna eclipse my favorite full sound in the SRH1540.
But they did..
Edited by Dsnuts - 3/2/14 at 5:49pm