RE: Mathews LX ?
I know how you feel. I was the same way when I purchased my Legacy.
I don' t think you will need any silencing equipment at all. I am shooting a 3D setup right now with light arrows and about 300 fps. Very little noise and kick. Excellent bow.
You will love that winners choice string. Worth every penny.
I am using the micro adjustable NAP 3000 ( I believe that is the right number ). Anyway, mathews rest is good too.
Good luck and let us know how you like it when it comes in.