I've only heard the FXT-90s. As someone who values an airy soundstage and quality bass, they did not sit well with me.
The soundstage was simple to narrow for me. It definitely had the in your head feel to it. Height/depth was good though.
Plus, I found they have way to much mid-bass for my tastes, which made mid-bass reliant artists like deadmau5 far too overpowering and fatiguing for me.
However, they are very forward and engaging, making music quite...