Doesn't surprise me that he lists himself as a bass; bass-baritones (I'm still going with that for him) tend to sing bass just as mezzo-sopranos (which I am) tend to sing alto. (Plus, if you're not an opera singer, the difference between bass and bass-baritone is fairly academic.)

I have never had the physical reaction to a man's voice that I have to Ben's. Just ... guh. Keep him talking. ;-)