Best Service Klanghaus 2, Virtual Instrument - Best Service ENGINE 2 sample player, Library contains original sounds from instruments built by Ferdinand Försch, metal drums, string instruments and combinations, sound images, drum and sound walls and sound machines, sample library size about 4,03 GB, System Reequirements: Mac OS: OS 10.9, 10.10, Min. recommended: Intel Mac 2GHz, 2GB Ram, Interfaces: Standalone, AU, VST (64bit), Windows: Vista, 7/8, 32bit & 64bit, Min. recommended: Pentium/Athlon XP 3.0GHz, 2GB Ram, Interfaces: Standalone, VST (32bit and 64bit), for all systems: Internet connection for product activation required (on any computer), Additional hard disc space according to the library size