Check out all the inconsistent crashing problems with Apollo interfaces and UAD satellites for which there is certainly no apparent cure.
BIG WELL KNOWN PROBLEM to seemingly a lot of folks, but I was taken in by all the hype. UA got me for the price of the Apollo quad and at least that much more in plugins. Spec'd out 2013 MBP won't run the Apollo on any of the UAD firmwares either above or below 7. Great plugins, LEMON of an interface, and the problem goes on and on, well over a year. I thought UA was GREAT, now I think UA is "slick". Lost my endorsement and my now $7000 "loaded" Apollo Quad goes on the shelf, for who knows how long.... Total BULL$HIT UA!
I was left feeling ripped off aster buying this plug-in. I really wish I had given it a demo first. Even at $99 I can't justify buying it. It's basically unusable on vocals. I wish I had purchased the Dimension D instead. Vocals or guitars, it just doesn't work in any song I've tried it in.