[barters81]

From my reckoning I think these only have compression and eq processing done to them only. I can't hear any reverb. Generally speaking mixing in the room mics used to record each sample adds a bit of reverb, but the close mic'ed ones doesn't have any.

In saying this just because they are processed already doesn't mean you can't do whatever you think sounds good to them.

I'll use reverb and send the whole kit through it at different send levels to try and meld it all together and give the listener a sense of the drums being played in a single room.