you need. Native Instruments discontinued Kontakt 6 in in favor of Kontakt 7 and 8. Downloads - Native Instruments
To download for your Mac, the standard method is using the Native Access management tool from Native Instruments. This free version of the world-standard sampler allows you to run professional "Powered by Kontakt" libraries and several free instruments from the Komplete Start bundle. Essential Compatibility & Versions kontakt 6 player download mac
Before downloading, ensure your Mac meets the requirements for the specific version of you need