These to me sound more like the HA-S500 in tuning more than the HA-S400. A bud for the gym perhaps.? lol. Ya not a real necessity if you guys own the FXD and the HA-S headphones. I am just happy they actually turned out much nicer than my initial impressions. I didn't feel these lived up to the JVC heritage but now they do for certain. I will continue to burn in I think I need just a bit more but I am loving how these are turning out.
You guys should know how small the housing is on the FX40. These actually have a smaller housing similar in size to the SHE3580 but the sound tuning is much more dynamic over any of the Philips earphones. I suppose you have to like a more detailed sound to love these but for what they are. Another JVC earphone that carries more than their purchased price.
Edited by Dsnuts - 10/15/12 at 1:07pm