You could at least listen to the reports of eye witnesses, instead using video game or Michael Bay physics.
The thing is, all witnesses described the demise as eerie silent in the middle of a sea battle. No massive loud explosion, but more a giant torchlight like flame consuming the center of the ship. That is uncommon for a magazine explosion, but not impossible, especially for ships still using cordite.
I've never really heard a magazine explosion or turret fire described any other way: flames as high as the mast, little or no description of the sound, and, in the case of magazine explosions, structural failure of the ship near the point where the flames are seem to originate.
And really, given the speed at which smokeless powder burns, I wouldn't expect a loud, sharp explosion. Maybe if the shell storage went up instead of the powder magazine, but high explosives tend to be relatively insensitive compared to powder: I've never heard of it happening in combat (but see USS Mt Hood for a non-combat incident).
Beyond that, very large explosions that one *would* expect to yield a good sharp crack are often reported to be silent: I've heard a number of accounts of the bombing of Hiroshima that made special note of the lack of sound.