For my tastes, IE 80's bass is a bit too slow and soft for EDM.
Oh no will I be dissapointed?
The guy has not shipped them yet, should I go for the T20s then?
But I will have to pay an extra 60 euros for the T20s...
Well, it depends on one's personal perception. I know some people that like the IE 80 with EDM.
The T20 has in my perception the somewhat faster bass, though the transition from ground tone to upper bass is a bit hard.
Personally, I'd go for the Fidue A73 with EDM. Lows are faster and mids/treble higher resolving. Bass quantity is less than with the T20, but still emphasised and imo more than enough.