Installing Mavericks on new MacMini

Hey I just received my new MacMini and want to install Mavericks because Yosemite won't let me use the Final Cut Server work around that I use. But when I want to install Mavericks I keep getting a message that it can't be installed on my system. In the system requirements it just says "

Mac mini (Early 2009 or later)". Has anyone also had this problem? Thanks Lilian