Don't ask questions, just get it. Thick synths and dark dance grooves outta NYC.
I'd like to offer up a comparison. They too, like The xx, are just baby-faced kids, but have two discernible advantages :
1 -- Being from America, they like to write their name in all caps : BRAHMS.
2 -- BRAHMS puts in some ass kicking behind their simple, dreary rhythms rather than forcing meager, depressing rubbish on the world.
Plus check their Neon Indian remix of "Psychic Chasms."