Actually i was comparing to my 2012 GT. My GT has zero freewheel noise which i love. It allows me to ride down a trail in complete harmony with nature. When i hired a trek Fuel Ex i was repulsed by how loud it was. It completely ruined my fantasy of pretending to be a bird flying along the trail.
In general i think bikes are a lot louder now than they were 5 years ago. Although i like quick engagement i prefer my bikes to be stealth quiet. I'm planning on buying a Trek at the end of this month and it comes with these wheels so i am going to see about an Onyx or True precision solution. I haven't used these before so it should be interesting.
Sorry if my post was a bit random ;)