The number of plug-in instances which can be run simultaneously on a single host computer is limited only by the power of the host computer.
Duende Native is fully 64 Bit capable in suitable Mac and Windows Operating Systems.
Windows XP (SP2 or higher), Vista 32/64 Bit or Windows 7 32/64 Bit or Windows 8 (64-bit)
Intel Core2 running at 2.0 GHz or higher (or comparable CPU)
2GB of RAM (or higher)
VST (32/64 Bit), VST3 (32/64 Bit) or RTAS (32 Bit) compatible Host
OS X 10.6.8 or higher (32-bit or 64-bit kernel), OS X 10.7.1 or higher (32-bit or 64-bit kernel), OS X 10.8.5, OS X 10.9 or higher
Intel Dual Core MAC running at 2.0 GHz or higher
2GB of Ram (or higher)
AU (32/64 Bit), VST (32/64 Bit), VST3 (32/64 Bit) or RTAS (32 Bit) compatible Host