It's a bit of a cliche I know, but I associate the "powerhouse" scents with
the flamboyant 80's along with power dressing, shoulder pads and full hair.
The scents that come to mind are Poison, Gorgio Beverley Hills, Red Door,
Cinnabar, Amarige and White Diamonds (mostly American I have to say!)
Estee Lauder was the perfumer who "upped the ante" on the strength of scents
and put higher doses of everything in her perfumes to attract a new audience.
I think Angel would be classed as a "powerhouse" fragrance - I certainly wouldn't want to be
in an elevator with someone who had over-applied that particular perfume!
I don't know enough about chemistry to say what makes a scent smell so strong - but I'm sure
there are people on this board who will know.
The only loud scent I really enjoy is Hypnotic Poison - I could drown in the stuff. Oh and maybe