Originally Posted by
hillberg
It's been some time when did the low RPM horn get installed in the 300 line?
It's that big bell in your head, next to the one for high rpm, that goes off every time you hear the rpm change in your ears!!
Just changed from David Clarkes to Bose A20 - listening to the rpm takes a flight or three to get used to after the headset change with ANR; that being said I think the Bose makes it easier to hear.