I wouldn't call it tinny, I would call the alternative 'muddy'. It's a much more pure tone than you would get from a 'normal' bass string (which is actually quite a complex piece by itself).
FWIW I've noticed that "rattling" (which I think I hear in the Liszt Funerailles video) in some K-pop videos featuring electronic low bass at the ~40Hz level. I think it might be natural and not an artifact or flaw.