the AR' s are the QUIETEST bows that i have ever shot, period! all you here is the string coming back to brace. i have shot only one bow that " I" feel has less vibration and that being the Mathews Legacy. the big difference being in that the Legacy is decked out with the latest " rubber gadgets" while the AR is designed without the rubber. that to me is worth something when it comes to engineering comparisons.....