I did have 4x 80mm thermal fans i bought years n years n years ago but I cant remember the brand (2 are still in use in my back up pc)
the only few 80mm fans i can think of (if not the Akasa ones with LEDs that go at 3000+ RPM) is the Akasa Amber series fans. - but they have a lower RPM & also make a bit less noise then the fan that just died on you.
ermmm........Artic Cooling make 80mm fans too
-----
http://www.newegg.com/Product/Produc...20SA0825FDB12L this might be to your liking
but unfortunately its not as good as the one that died on you. but the words 80mm + silence dont fit in the same sentance.
Scythe KAMA FLEX's have had many good reviews - but they are noisey & thats where your fan controller will come into good use.
sorry I cant help further.