Texan SS or LSS Carbon Bottle w/ TX2 valve...Decibal Readings

Aloha AGN, 

Has anyone information on the shooting decibals on the new Texan CF bottle TX2 valve. I am wondering how loud the SS models are compared to the non-SS models with a Donnyfl or another moderator on it. I know its not going to be mouse fart quiet but I don't want to lose anymore of my hearing and shooting with earmuffs or plugs are just another thing I have to make sure I remember to pack when going hunting. I'm looking at the 45 cal. to add to my arsenal. BTW, the hunting I do is on private land so keeping the report down is not crucial but it will help in not spooking the herd. 

Aloha, Keone