remove echo from audio?

simon.a.billington wrote: … Unfortunately they didn't give a time frame.

um, well, in reply on my request, support@plugin-alliance.com wrote 2nd Nov:

…We expect to at least have a more specific answer in a month. FYI -- our plugins do seem to work fine under Sierra in other DAWs besides Logic. …

.… for me that Is a time-frame… ... … 

The trouble being FCPX & Logic relying on the Audio Units to work... and I use both!!

I have quite a few of their plugins, so they are pretty much the main reason why I haven't updated to Sierra. Once they give the all clear, that's when I'll be updating.