Un-dampened with orings... blue brown black red mx, are all pretty loud.. because of the clack noise when it bottoms out, and the Dchat-- noise when it rebounds.. the 'D' is silent when pronouncing "dchat'
with orings, the red brown and black are quiet on the down stroke, but then you still have the upstroke which remains undampened.. Though if you want to argue, that since the oring reduces travel, technically, the upstroke has less energy and thus is ALSO dampened... well then you'd just be right.. but yea so you see..