My noise doesn't change with the RPM..it changes with the speed I'm travelling. My two front bearings are new but maybe the rear ones are causing some vibrations. I just had the car aligned and the wheel's balanced and still no change whatsoever. Maybe that would do it for you Hundred. I've got...
Was this issue fixed? I'm having the same type of problem. At around 90-100km/h, my car gets significant vibrations in the dash...I've resolved to pounding on it like a deranged gorilla but that didn't help..