Hey wow! I just realized I can also hit the low-E that got him the job singing with a Russian choir for De Profundis. Of course, Tim can go two octaves farther down (and nobody wants to hear me sing - lol).
BTW - There ARE exercises to help improve your "low end" (if you will). For years I've used one called the King Kong exercise to help with my voice-overs and when I have to speak (like when I run dart tournaments). What you do is start at a comfortable LOW note and sing "King Kong" then, even lower, "Bing Bong" and, finally, lower still, "Ding Dong." Then change up the order. I do this when I'm driving so people don't think I'm crazier than I already am and you can really get things rumbling when you do Bing Bong as the lowest note. Each one stretches your vocal chords so it's a great warm-up before speaking.