Ran Yokohamas on my company truck for several years, very smooth, averaged 50K miles out of a set. Very quiet--but they are on a pickup truck, 16" wheel, large sidewalls....noise/ride does not change regardless of pavement...No issues, in fact, now, I use Yokos on all company vehicles. I've also got Firestone, Cooper, and Michelins on my personal vehicles---no complaints on noise or bumps---the Michelins are loud or quiet depending on the pavement, but they are also 255/35---skinny sidewall---
Alot of the "rough vs smooth" depends on tire size, no matter what brand. If you have large wheels with little rubber band tires, you're going to feel every pebble in the road. The larger the sidewalls, the smoother the ride.
Alot of the "rough vs smooth" depends on tire size, no matter what brand. If you have large wheels with little rubber band tires, you're going to feel every pebble in the road. The larger the sidewalls, the smoother the ride.