The original organ compass of the manuals are 56 keys (the virtual 58 keys), the compass of the pedal is 30 (virtual 32) keys.
RAM requirements Stereo-mix version
16 bit, multi. loop & releases: 4 GB
24 bit, multi. loop & releases: 7 GB
16 bit, multi. loop & releases: 10 GB
24 bit, multi. loop & releases: 17 GB
The sample sets are available in wave format 48kHz/24bit, stereo, multiple loops (usually 10-14) and multiple releases (3 levels).
Equal, a=440 Hz
The sample sets are made in two forms. a. A version of stereo mix (mixing of 6 channels recording). b. A Surround version (3 pairs of stereo recording: close (near); at distance (far) and in the background (rear).
In the surround version you can change freely the ratio of sound volumen of near and far and rear recording. (Suitable blocking channels can be used for wet or semidry stereo modes too)
Hauptwerk v4.0 and higher supported for the Organ Definition Files.