I was wondering ig the technology of this plugin is the same as in the Little Labs IBP: http://www.littlelabs.com/ibp.html

PHA-979 is very close to IBP in the idea.  However, since IBP is an analog box, it is not linear-phase and thus it may add some additional 'analog' coloration, it may also shift some range of frequencies more than the rest (I have read it has a lo/hi switch for this).  This may or may not be good.  PHA-979 is neutral in this respect.  When applying PHA-979 you can be sure nothing is destroyed in the process.

I have an IBP as well.
It is different in that you cannot start at 0 Phase and dial in a change like you can with pha-979.
The ibp has a "phase curve" that starts with a 25 degrees shift @ around 400hz according to Jonathan at little labs.
The other end of the curve is actualy very close to 0 degrees shift though so i sometimes start from there.
There are 2 all pass transformers of which you can use one or both depending on how much shift you want.
It's also a great DI and guitar line buffer.
A great box overall.
But i love this pha-979 because i like to double check stuff in the daw and sometimes the ibp is not available for the tracks i need it on.

There is a thread with the maker of the IBP going on about the plug vs hardware over on the gearslutz forum.

http://gearslutz.com/board/showthread.php3?s=092dc576a945a327fc0a8e956e1c718a&threadid=15660&perpage=15&pagenumber=2


Douglas Hise

I'm replying there now.