The upgrade from Anthology XI to XII (with no other plug-ins) is $199. This gets you SP2016 Reverb, SplitEQ and the H9 Series bundle (over $900 total value) . If you own Anthology XI and SplitEQ the upgrade price $159. Buying SplitEQ separately with a crossgrade ($77) and then upgrading ($159) will cost you more than your current $199 price.
