It's actually a clip from the early stages of creating that pack so I don't know which exact IR it is but I'm pretty sure it's the SM57-MD421 01 Alloy Ace IR. Here's the thread where it was originally posted: http://forum.fractalaudio.com/threads/quantum-vox-ac30-treble-boost.103931/No problem...happens to the best of us!
Do you recall the particular IR, within that Cab Pack, you used in that clip?