Unfortunately during testing of the δ-Ctrl automation system it became apparent that SSL cannot currently reliably overcome an inherent limitation in the architecture of Apple's Logic Studio software. Logic prevents any controller from controlling more than one plug-in at a time. Viewed purely within an 'inside-the-box' paradigm this makes some sense in that the control interface is the mouse or trackpad but it presents significant limitations to the way hardware controllers can be used with the software. SSL did devise a workaround but it has proven to be unreliable with some systems during beta testing so it is with much regret that the initial release of the Sigma δelta system does not contain an Audio Units version and thus doesn't work with Logic. SSL is now working on a completely new 'fix' for this limitation but it will take some time. Please feel free to lobby Apple to remove this limitation from their software.
Logic users can still use the Logic (MCU) or MIDI protocols in the v1.0.3.x or v1.0.4.x software.