The Hammond organs are very complex beasts, full of wires. Until now, the best renditions were made by synthesis. The organ comprises of a set of 91 frequencies that are connected via contacts under each key and their volumes are controlled by the drawbars.
Acousticsamples found a way to use the 91 frequencies synthesis approach by using real samples. This meant they were able to get the best of both worlds, the real recorded organ tone plus the real behavior. This allows the user access to the versatility of the drawbar controls and the tweakability of synthesis.