I'm currently using the Arai Quantum E, and it's a great helmet if it fits your head type. It's supposedly quieter than some helmets, but I'd definitely second, third any advice to wear earplugs.
On any ride for an hour or more causes my right ear to hurt. At first I thought it might be the helmet, but after trying plugs for a run through the hills, I found my ear didn't hurt at all.
Though the Quantum E is great, I finally tried on an RX7RR3. Oh yes, that's on the Xmas wish list now. The padding seemed to fit perfectly, and there's a bit more room from my nose to the guard. I'd have likely bought that the first time, if I could have afforded it then of course.