I mean the ddrum3 sounds in general, not especially single shot sounds. I assume you mean the same Clavia ddrum3 CD as there was no other.
There are definitely parameters you loose if you convert the sounds to wav.
You have to distinguish between two different ways of sound manipulation in the ddrum3:
a) user adjustable: all the parameters found in the menu (filter, param EQ, damp, click, attack, pitch, bend, gain, xfade, etc.)
b) factory settings: random sample play, position phase (phasing effect controlled by position), random start, and – most important:DVA!
you can check the Simmons sounds from the ddrum3 CD. They have filter parameters causing them to sound very different depending on velocity (not just volume). Most of them use the dynamic EQ and dynamic pitch bend. One Simmons Tom from the ROM bank for example changes pitch entirely when hitting harder.
These parameters are stored in the ddrum3 sounds (kind of hidden as you can't access them outside the ddrum3). You loose these features if you convert them into wav. The 2box can't read ddrum3 sound parameters. And even if the 2box could do it, it does not have filters at all. Just straight sample playback. So you just get the static sample if you transfer it into the 2box.
Beside those parameters (a), there are parameters which are really hidden, described under b). I don't know exactly to which of the multisample sets on the CD the b) type stuff has been applied to. If you want a prove just listen to the Nord Lead Percussion sound no 15. it's a multisample with random sample playback. Which you will loose as well if you convert to wave.
Clavia introduced a thing called „drum head vibration algorithm“ with the ddrum2. Of course this has been found in the ddrum3 as well. This algorithm changes the relation between the overtones if you play fast repeating strokes. This is the algorithm eliminating the machine gun effect! And yes, you even have a hidden parameter „DVA“ in your ddrum3! I think it was 0 to 6. With the ddrum4 the version two of the so called „drum head vibration algorithm“ has been announced.
You see there is a lot more to discover than just calling different velocity samples! Otherwise it would be easy to make a good and realistic sounding drum module if just some multisamples would do the trick. They don't.
The 2box has this velocity layer variation thing in order to avoid the same sample played back repetitive to get rid of the machine gun effect. And a lot more layered samples of course. But it works different from the ddrums and that's why you won't get the same results by just converting the ddrum sounds into wav and transfering them into the 2box.
