Hi,
No, I didn't work out a deal with Ownhammer...I did speak with Kevin (he runs OwnHammer), very nice guy. I had questions about the different IR packs, and he gave me the scoop on how they worked, which was helpful.
The IR is simply a replacement for the Helix's built-in cabs...they're digital snapshots of a mic in a front of a cabinet. So, for example, the OH 412 MAR-CB V30 121-FRED,
OH (OwnHammer), 412 MAR-CB (4x12 vintage Marshall 1960b checkerboard cabinet), V30 (Celestion Vintage 30), 121 (Royer 121 ribbon mic), and FRED (Studio Fredman 45 technique, placing mic at the center of the speaker, at a 45 degree angle).
My personal favorite IR packs are the 412 MAR-CB, 412 DZL-RL, 412 ENG, 410 SPRVRB, 212 VX30, and 212 MAR-66...my favorite IR's are the 121-FRED, 160-FRED, 70-FRED, and 414-FRED...hard to go wrong with those.
Rock on,
Scott.