I do not find the MP 46M too loud, the cocking stroke is one of the easiest SSP I have used (very efficient for its 460 fps) and I actually like the forward weight. But beauty is in the eye of the beholder; it is not everyone a cup of tea!

The FAS is easier to cock and fairly quiet, but rather low on fps.

The Tau 7 can be adjusted for lower fps/higher shot count but still has a good old crack. I adjusted mine down from 536 fps to 470 fps.

For CO2/PCP I use ear plugs but for SSPs I do not; an indication of the noise levels from the shooters perspective.