I have about 1k miles on a set of Ridge Grapplers and they are not loud at all. Haven't had them off road yet, but so far they've been good on highway and in the rain.
I got about 70k out of a set of Terra Grapplers and although noisy, they were by far the best performing truck tires, both on and off road, I've ever had. I hope the new Ridge Grapplers follow suit.
Prior to the Terra Grapplers, I had a set of BFG AT's and they were a huge disappointment. Decent off road, but wore really fast and were dangerously bad in wet conditions. I had to get rid of them at 40k.
Edit to add: I wanted to get Terra Grapplers again but tire salesman warned they were being phased out in favor of the Ridge Grapplers. Said if I damaged a tire a year or two from now, there's a chance I wouldn't be able to find a matching replacement. Of course he could have just been up-selling me, but he had Ridge Grapplers on his truck, which was enough to convince me.