[Zankes]

Hi. I have owned Fidue A83 about a half a year now, I love the sound, but no matter what tips I tried I never found the perfect fit with tips which would bring good isolation.
 
I am looking to upgrade to something else, with more isolation and replaceable cable is a must. I was interested in Westone W40 as people said it has fantastic isolation, but some say that Fidues are better sounding. This seems like a hard task to find a good upgrade. I guess I would prefer to spend 500€ max.
 
I previously owned Shure 215 and they have the best isolation I have ever heard.
 
I need help, thank you.
 
EDIT: I would prefer some sound signature which is well balanced and naturalish

 

[smy1]

Well my im03 are around $300 great isolation and sounds amazing with JVC spiral dots.

 

[PinkyPowers]

I love the IM03, but I would not recommend it for someone seeking the super sharp, aggressive treble, and ultra detail of the A83.

Try and find a pair of Noble Savants for your price range. It should prove the perfect upgrade to your Fidue.