Most Remos I've come across sound like that. I suspect it would ring less with more tension. But with the smooth and reflective interior surface, it will always ring...
I can't believe that last year at this time I was cluelessly rocking a sweet brown fiberglass Remo. My daughter calls me a djembe snob, but we all have real wood/goat skin/rope djembes. Oh what a difference a year makes.