Do not know anything about them, but I think they have been mentioned on here before. You could try a search and may get a few hits. As far as looking for something on the quite side, that is not going to happen, if you find one, let us all know. All CBs are loud by nature and design, a lot of power in them little limbs. You can make some a little better, but you will never come close to making it quite enough to make a difference in a hunting situation.