These are some popular free IRs that I have converted to UltraRes format:
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/13.0/GuitarHack_UltraRes.zip
I don't believe there is any sort of commercial license associated with these but if you use them and like them I recommend giving some props to the creator.
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/13.0/GuitarHack_UltraRes.zip
I don't believe there is any sort of commercial license associated with these but if you use them and like them I recommend giving some props to the creator.