I bought my grandpa a yamaha viking and had the dealer install a curtis hard cab on it for him and i am absolutely blown away by how loud it is in the cab. He will never use this thing because of how loud it is and we paid close to 25 grand for the thing. Is there anything that can be done to quiet this thing down in the cab? I have a yamaha viking with a soft cab and mine is not to bad but nothing compared to that hard cab it is ridiculous basically makes your ears ring its so loud. What can i do to fix this problem?