ABSOLUTELY a direct improvement over the similar sound sig.
Deeper bass extension, taller treble extension and larger soundstage. It's a significant difference.
That pretty much describes the 240€ T-PEOS H300
Joking. The H300 is amazing, but even W40 beats it, especially in midrange. It's almost liquid, organic, very very lush and sweet. Also treble is more refined. But H300 is a serious competitor for W60 at 240€. lol. They have that deeeep bass, taller treble extension and larger soundstage, pretty much as you describe it. Only issue is: they use to split in 2 right out of the box
I will buy them. If the difference isn't that significant, some blood will be shed here